To all the guys who know a thing or two about shaping or just boards in general:
im looking to replace my CI dumpster diver in the next few months or so and want to get some feedback on round tails (thumb or something similar) for my small to medium wave board. I ride my DD probably 75% of the time that i surf here in jersey, from thigh high up to chest/shoulder high. im looking to stay with a similar kind of shape and will probably end up ordering something custom from a local guy but was thinking about switching it up from a squash to a round tail. Why? i have a couple of other boards (shortboards) that have a round tail and im a big fan. anyway, im just trying to get a little feedback as to how a round tail would affect a board like this.
A round tail won't plane as high, so it' won't be as fast across flat sections. But you could help compensate for that by going a little wider in the tail (a foot up). I'm a big fan of round tails, too, and think that if you to go with a round tail in small waves, you might bump out your tail width, like, 3/8 to a half inch, maybe go a little more parallel in the outline, and lower your tail rocker a touch.
squash tails are more drivey, loose, and slidey. rounded pin tails are a lot easier to turn.
this is probably one of the most incorrect things i have ever read on this site. by definition, drivey ≠ loose. you can have a mix of drive & looseness, but a drive-heavy board won't be loose & vice versa. & rounded pintails are easier to turn, but not b/c of their tail shape, but b/c of their tail WIDTH. they also tend to have thinner, knifey rails, which are more responsive. it's true they're not as fast in smaller, weaker surf, but that's b/c they're not meant to be ridden in that type of wave. round pins & pins are designed w/ the idea of controlling speed & increasing board sensitivity in *real* surf. i love rounded pins, but i bust them out only for bigger, steeper surf.
like LBCrew said, if you go round, bump up the overall tail width to compensate. round tails tend to have reduced tail area due to the edges being, well, rounded off. a better option might be to go w/ a swallow or a diamond tail, depending on what you want out of the board. if you want more top end out of the board, go w/ a swallow, as they tend to hold better in bigger or steeper surf due to the reduced area & hard edges of the individual swallow tips. if you want the feel of a shorter rail line on a longer board, go w/ a diamond (i think this also makes a nice compromise between round & squash tails). you can do the corners as hard or soft as you choose...
Agree NJsurfer his statement is odd. Drive never equals loose. Plus I would not describe a round pin like a skateboard with loose trucks. If anything that longer rail will give a more drawn out locked in turn. I have a wide fish tail on my fish (imagine that a fish tail on a fish!) and a 6 footer with a diamond tail with 5 fins boxes that is fun as hell.
This is good stuff. So on a board that has a winged approach to the tail, would you get the best of all worlds with a winged swallow tail?
no, the wing acts to create a "break point" for the rail, providing both a pivot point & a way to abruptly narrow the tail of the board, which will increase hold & add responsiveness to an otherwise wide board.