Foil boards: Mid-length? Downwind? Wing board?

https://video.wixstatic.com/video/340f9c_f89ed68f9d084601abd66eef19ee9425/1080p/mp4/file.mp4

Reactive's Dave Ewer takes us through the evolution of mid-length boards from their inception when we discovered Downwind boards made excellent lightwind wing foiling boards.