The T-bellys have a number of unique features. The deck has a 1/4" concave starting about the mid-point and deepening towards the tail. Thickness along the stringer is 2-1/2" while thickness at the rail is 2-3/4". The concave offers a snug fit for the rider.
The bottom is relatively flat in the middle transitioning to slight convex or "belly" in the nose.
I don't like the look of handles or straps on the deck, but realize that there is a need for grip enhancement. Taking a cue from shortboards built for doing aerials, I add "thumb grooves" to the front-half of the T-Belly for better grip.