Surf Sup Shape Input

[Supshaper]

Looking for input on my new surf sup.  A little about me.  60 yrs old, 200lb.  Build my own boards.  intermediate / advanced sup surfer.  Current board is 8'4" x  31" x 135L  Surf in SD north county mostly.  Looking for a little more float and stability in my new board.  A better wave catching board without sacrificing too much maneuverability

The board shown has a flat bottom from the nose through the middle of board going into a double concave through the tail.  Any input on this design I can get I would greatly appreciate from you experts out there.  Particularly on my rocker numbers. 

[Biggreen]

On that length I think I'd increase the tail rocker at least 1/4" and prob 1/2". Would be my personal preference. If you're looking for cruisy, glidy, or planning a lot of V I'd say keep what you have.  Nice shape! Post build pics.

[Supshaper]

Thanks, for the input.  I will increase the tail rocker another 1/4".   I'll post pics as I go along with the build.  Any suggestions on the fin setup?  I am going back and forth with quad or 2+1.

[anonsurfer]

I think it looks great!  Things like rocker, outline, dimensions, and bottom contours are very personal so I could tell you what I would change but then it would not be a board for you :-)

For fin set up I'd go with 4+1 for the most versatility.

[anonsurfer]

Can you post an image or provide details on your vee/concave measurements? 

Vee/Concave:
I think you should add a little vee in the center slice (0.05" - 0.10") to help with rail to rail transitions.  31"+ of flat will be very fast but may also cause the board to stick.

COG and Rocker Zero Point:
What are your center of gravity and rocker zero points? 

[Supshaper]

Appreciate all the input.  Anonsurfer,  see the screen shots of the double concave in the tail.  This is the deepest section.  Rocker zero point, if I understand your question, is 53.8" from the the tail or dead center of the board.

Hope you guys don't mind all the questions.  I build these things for the pure joy of going it.  At 60 years old and the cost of each one, I want to minimize the trial and error as much as possible.  So, greatly value your experience.

[anonsurfer]

I like your subtle bottom contours, the board should be fast. 

For rocker check a board you really like and adjust from there depending on what you want out of this board.

Vee/Concave:  I would add a very small amount of vee in the center and increase the vee as you move towards the tail.   The vee will help the board go rail to rail a lot easier than a perfectly flat center profile.    See attached rail profile below of my old 6'10" Buzz showing the very subtle vee in the center slice (0.07") and vee at 12" from tail. 

[Supshaper]

Thanks,  I have made the changes and stoked to get started with the build.  I will continue to post pics and questions as I progress.