colas said..
In my experience, you need to crouch a lot (as shown in Derek Hynd videos), and width is your enemy: too wide a board, and the board will try to spin around rather than go straight (too much drag)... 2 things that are really harder on a SUP than on a prone surfboard...
Attention please, that board is flexible, it's made of bodyboard material , built to play in shore break with paddle in hand as a moving fin as they ( squids) do with flippers. This is not composites EPS/glass/epoxy resin, this is XPE foam with carbon fiberglass sole.
And it's just a sketch up from playing with my CADsoft.
this is not serious
I will insert channels bottom later on...in case