Great topic Mark with a lot of good advise.
Did a lot of slalom racing and speed in the Styrotech days. As much as Russell raced pro events and we were the "South Pacific Mexican Board Builders " I always got my own boards detuned to go faster and gybe better in chop/ocean. Essentially more overall rocker, more v and thinner rails with more tuck. I was a fast speed sailor that couldn't consistently gybe so design around that made a difference in better control.
Also strap location a bit more inboard and the advantage in rough water meant better more control and speed and around the buoys. And when there were ramps on the course you could hit them at speed get some airtime with confidence to land

Question-what conditions are optimal for this board?