and we’re here…

sidewalk surfer out for delivery

Well we have made it to San Diego. Thank you to all the family and friends along the way for making it such a great trip so far.

Stopped by Mitch’s North on the way down to Custom Surf Glass/G&S, where I’ll be spending my time shaping. It’s a great feeling, knowing all of the good folks who help make it all happen. I am grateful to them all…

ramping up…

Well, my next work trip is shaping up (pun intended) for May ’23. The new (to us) Vanagon is being massaged and readied. Orders are starting to pile up, and Karen and I are beginning to get excited.

If you are interested in a mast surfboards shape, please contact me at

Have a good one, and stay well. #mastsurfboards

the EDB (every day board)

mast EDB (every day board)

EDB rnd pin

The second board I ever shaped was 9’01”, and became one of my most popular design threads, the EDB, or every day board. I based it on several boards I had been surfing and studying, including what I believe was a Slingerland shaped Caster branded 9’02”, and the boards that Larry Gordon was still providing to friends at Tourmaline. None of the boards that appealed to me would be considered “logs”, but in my mind were evolved single fin designs in the nine foot range. The templates were middle of the road, understated yet elegant. I then mixed in a bit of the Frye-ish bottom contours that Tom Connelly had so generously opened my eyes to. In fact, all of the older crowd at Tourmaline, including Larry Gordon, Black Mac, Bud Caldwell, etc. were supremely generous with their knowledge and aloha spirit. The fact is, that I was really just trying to shape a board for myself, for that particular spot (and more generally San Diego). I also could not afford a quiver at the time, so I needed a board that would work for me every day in the relatively mellow conditions I still prefer. So the EDB.

The first EDBs were diamond tail, for no other reason than they looked cool, and kind of split the difference between square and round pin. I went on to offer everything from diamond tails to round pin winter versions, eventually settling into a thumb type round squash stolen from a Frye Thinman owned by Island Mike that I had been admiring.

EDB diamond+

Most recently, I did a diamond tail, his second, for my friend Aaron at Pastel Surf Co. He requested that I push the tail width out a bit. Feedback from him may lead me to push the tail out on a more regular basis. The exception would of course be for the more winter oriented versions.

EDB winter pin w/Cherry fin
EDB rnd pin

Either way, the EDB (every day board) is my effort to provide a decent “surfboard”, not a longboard, not a shortboard, just a surfboard.I feel like the EDB fits in with where surfboards were heading before the shortboard revolution. A board that feels like the right choice in a variety of conditions from big Cliffs to small Tourmaline.

Thanks for looking.

design threads

Those who have actually followed my shapes over the years may have noticed that the models that emerged from my rather selfish desire to shape the perfect boards for myself, have not been stagnant. They have evolved, along with my sensibilities, abilities, and knowledge of surfing and board design.

Extreme ends of the spectrum.

To be fair, no two hand shaped surfboards are ever identical. Even machine shapes vary depending on the final hand sanding and tuning. Even the unsung heroes at the factories (laminators, gloss and hot coat guys, sanders, fin guys, polishers) help determine the final result, each in their own way. Another factor for me though, it is my inability to shape as accurately as more experienced hand shapers. I am not one to rely on exact measurements of every aspect of the board. What consistency I achieve is sole a product of my doing each step of the shaping process the same each time. It’s an intuitive method that turns out shapes like mine because that’s just how I do it, each and every time. Often the process and what I see in front of me takes over, and in an effort to keep everything flowing and harmonious, goals and final results necessarily shift. I feel that far from being a bad thing, this reality allows for the opportunity to feel differences and learn from them, adding to the growing library of cause and effect in my mind.

Here is an example of this process at work. I was able to pull a template off an extraordinary board that I had the good fortune to come across. For my first shape that I did for a friend from this template, I tried to match the original ‘70s shape, with as good of results as I could muster at the time. It worked very well indeed, and he still has it today, close to twenty years later. The second one, I made for myself, and I foiled out nose and tail a lot, carved deep bottom contours and really knifey rails. I surfed it to death. It was wide, but the fineness of the rails and foil made it extremely sensitive (which I like), while still planing nicely. I don’t want to say my surfing is tentative, but I am certainly no power surfer, so it suited me fairly well. The third one, again for a friend, I split the difference, and it ended up the best of the three, easy and fast. It had no element that stuck out as extreme (to me anyway), and it just worked nicely in a variety of conditions. Experiments like these are excellent learning opportunities, and I try to do them whenever I can afford to.

One of the great benefits of hand shaping, is the flexibility it allows. Adjustments can be made, board by board, to improve (hopefully) any design, and back up on things that may not work out as hoped.

All of this gets me back to the point of this article. My model designations must be looked upon as an indication of the general feel and utility that one can expect from any particular model. They may vary slightly from shape to shape, but they typically retain a particular feel and purpose.

So please keep in mind that if you have a board of mine from ten or twenty years ago and want to recreate it, I am happy to give it my best shot. I will be able to give you the same vibe, but it would be a very lucky day indeed that I could produce the exact same shape. If all of this sounds like me making excuses, that’s because I am. Whether it is a good excuse or not, I leave up to you.

HPH (mid-Simmons)

mast HPH (hydrodynamic planing hull)

It was at one of the very first Sacred Craft Shows, now billed as the Boardroom Show, that I got eyeballs and hands on a Joe Bauguess mini-Simmons. Maybe it was Casper, not sure, but I can remember asking the guy in the booth if it actually worked. “Oh yeah!” was his response. I was thoroughly intrigued. It was so not smooth, not sleek, not sexy. How could it be that it worked as well as the guy said? Well, science, that’s how. I had done some reading on Bob Simmons and even a bit on Lindsay Lord, the author of “Naval Architecture of Planing Hulls”, the book Simmons was know to reference and study in his quest to produce a better surfboard in the late ‘40s/early ‘50s. I dove back into researching as much as I could find about Bob Simmons and his boards, and eventually read through the pertinent parts of Lord’s book.

Belly to single concave.

While the mini-Simmons I saw looked to me like a traditional(ish) plan shape, the rails and bottom seemed more modern. After seeing a photo of a beautiful full length Simmons, with the incredible amount of belly forward and deep single concave throughout, I decided to try a board with more traditional (to Simmons) bottom and rail contours, in a mid size that someone of my age and surfing ability might actually be able to surf. I basically took the front end of one of my earliest templates, a 7’6” fun shape, cut the tail off, and did minimal adjustments. The once center wide point became the hips, decidedly aft of center. The tail block, which I have since arced a bit, is roughly 16”.

Soft, pinched, upswept rails forward, blending down to a nice edge toward the tail.

The Lindsay Lord book gives a great description of the theory and tested reality of the design elements of the most efficient planing hull (on smooth water). The belly forward provides primary lift and displacement. The water then has no choice but to follow the smooth contours around the belly and to a significant extent, into the single concave, providing secondary lift. It is then coerced into flowing on out the back. The keels provide added directional stability. It all gets a little wanky when you consider the less than parallel water flow across the bottom of a board actually going down the line on a wave, but it all still works splendidly.

Ready for the Rick Clow half moon keels.

My first HPH (hydrodynamic planing hull; aka the thumb, aka mid-Simmons, aka lima bean), came in at roughly 6’7”x22 1/2”x2 3/4”. To my surprise, it was incredibly easy to surf. While you could not glide into soft wave on the outside like a longboard, it totally kept up with boards up to eight-something feet long. There’s a lot of foam in that tail, and it picks up small to mid-size waves nicely. So many people that I let try it ordered one, so it became one of my regular model threads. It evolved into two threads; a “speedster” version with slightly subdued contours, and the more original “lima bean” curvy original. Interestingly, the original, while feeling extra fast and dynamic in small surf, ended up having a speed limit, I believe dictated by the extent of the contours (and there is a LOT of curve in the bottom). The speedster version, with its milder contours and edgier rails, had the same dynamics, but it spread them over a longer distance/arc. The speed limit was raised considerably while retaining the fundamental character of the design, which to me was that if you stepped forward, it acted like a hull, but you could still step back and surf from the tail in the manner of a fish. When you pressed your weight down on the deck a the bottom turn, you could actually feel the water flowing out the back, accelerating.

Over the years I have done them down to about 6’0”, and as long as 10’, but I really like the mid length. It just surfs way longer than its length would indicate. A good friend of mine, who typically surfed ten foot noseriders and longer Fryes, gave it a go one morning. He was close to my age (fifty something at the time), shorter and significantly heavier than me. He truly did not hold out a lot of hope for it, but popped up on his first attempt. At 6’07” it was the shortest board he had ever successfully ridden and was stoked out of his mind.

Two HPH models (Burnt Orange and Kelp) ready for gloss by the extremely capable crew at Custom Surf Glass in San Diego.

I success of my version entirely to my adherence to the original Lords concept. It just flat out works, even if my mid-size version does stretch the original length to width ratio a bit. The amount of planing surface/foam in the tail keeps it up and on plane even in the most gutless surf, although the same attribute can make it a bit of a handful in surf much overhead. That’s my comfort range anyway.

I you catch me at the beach, hit me up. If I have one with me, you are more than welcome to give it a go. It might surprise you.

back into the groove…

Well it’s been a couple of crazy years, but my post-Covid shaping schedule is starting to come into focus. Last Fall, this Spring, and now this Fall. Settling into a trip at least every six months. I am working towards a set up with a workable three to four trips a year.

Debbie and Eric Gordon, along with the entire crew at Custom Surf Glass and G&S have allowed me to continue putting boards through their factory, alongside so many great labels (G&S of course, Frye, Mitsven, Miller, Pinder, etc). I feel very fortunate to have the continuing opportunity to have my shapes built in such an environment.

Thanks to all of my loyal friends who continue to order my shapes, with a special thanks to Bird’s Surf Shed, Greg Surf Company, and Mitch’s North for their continuing support.

Hit me up if you would like to secure a space for my next trip, tentatively lining up for the Spring.

Also, I am going to attempt to break down the design elements of my most popular model lines in future posts, to give a sense of where they came from and where they may be going. So please stop back and have a look occasionally.

in the works…

Things are starting to line up for shaping in the Spring. Covid has certainly put everyone through the ringer, but getting back into a regular (ish) schedule has been an ongoing priority. I have been fortunate to have a list of very loyal surfers who continue to support my little label, and I want to thank you all. #mastsurfboards #stevenmast #customsurfglass #gregsurfcompany #birdssurfshed #mitchsnorth

back in the shaping bay (for a minute)…

Well, the Fall trip is done. The factories have been at or beyond capacity for at least a year. Covid seems to have revved up demand for , among other things; liquor, guitars, and surfboards.

I did not have the good fortune to know, until well into my trip, if I would even have use of a shaping bay, and more importantly, space in the factories production schedule. Over the summer, everyone I spoke to or heard about, was way behind schedule. Not a little backed up either. Folks were from dozens to hundreds of boards behind. A lot of things added up to cause the surge in demand, but the bottom line was that I had no guarantee of getting any boards through when I left for my trip, which had been planned since Spring.

Fortunately, the good folks at G&S/Custom Surf Glass, Debbie, Eric, etc. shoehorned me into their busy schedule, and I was able to a few shifts a week of open shaping bay time. Unfortunately, it was not enough, during my limited time in San Diego, to get nearly as many boards through as I wanted to. I have a list of patient and loyal surfers who have hung with me through the Covid era, but the first three contacts filled up my planned available time. Add in another friendly order from Greg Surf Company in Osaka (thank you Masa), and another friend or two, and I was busier than a dog scratchin’ fleas.

I apologize to those on my list, who I was not able to take care of, but another trip is in the works for the near future, and I will be contacting everyone again soon. With luck, I will be able to plan sufficient time to get everything done. In the meantime, we’re doing our thing here in Newport, enjoying the season, family, and friends.


Well it’s been some time since I’ve posted. Life has been busy and there have been many changes. Thankfully, I am still getting to the coast and shaping on a fairly regular basis. I have moved production in to the capable hands of Custom Surf Glass/Gordon and Smith in San Diego. I was fortunate enough to be surf regularly with Larry Gordon when he was still alive and hitting Tourmaline most mornings. Through him, I met his daughter Debbie, and when she and her brother Eric pulled back in all of the licensing world wide, and began the journey of rebuilding G&S into a top notch custom surfboard entity once again, I felt like it would be a good place to be. The fact that my trips to San Diego also include working shifts in Pacific Beach at The King’s Head Tattoo, encouraged me to streamline all of my work into one neighborhood. And having the Canyon available each morning was icing on the cake.

You can find my boards at Bird’s Surf Shed, Mitch’s North, and Greg Surf Company in Osaka.

I’m still tattooing full time (more or less) at Designs by Dana in Cincinnati/Covington when I am in town and also selling cool guitars on at Queen City Guitar.

I’m just going to throw down a mess of images from my recent trips. Thanks for looking, and don’t be afraid to holler at me.

HPH hydrodynamic planing hull

Sk8 Supply is Debbie Gordon’s skateboard supply house. Cool vintage and vintage style goods.


Stoked to have some redfin style boards produced by the originators!

That’s where I want to be.

Tools of the trade. Well, one of them.

Tool of another trade.

Thanks for looking. Have a good one.