Things brought up:
Tips downward on the front wing designs for preventing ventilation in the jibes.
Lowering the boom can help or hurt, depending on the amount of chop. He mentioned he likes to raise the boom some to unweight the nose when it's choppy, to prevent harder hits of the nose on chop. In flat water this is a bit different.
Loose vs. tight leech. He brought up the importance of loose leech when doing more slalom/speed foiling vs. hard upwind in course racing.
I was working while listening so I may have missed other aspects, but I found the boom aspect the most interesting.
He also referenced* some sails lift and some press down. I wonder if he wants to wade into that discussion 
Interesting to hear about how much manufacturing realities informed his designs. With many foil makers adapting a monoblock approach, I wonder if manufacturing tolerances will be sufficient At the pointy end of the windfoil market, separate wing and fuse still seems to be a thing.
*Edit: I was talking about part 1 not realizing how much he covers things in part 2
Select to expand quotePaducah said..
He also referenced some sails lift and some press down. I wonder if he wants to wade into that discussion
Haha yes I will leave that to the others on the site to discuss.
Speaking of manufacturing, AFS was showing their factory in another recent video. Haven't been able to give it much attention:
