If you haven't seen it yet, this month's Sailing World has a good article on the full foiling GC32 class racing.

https://www.youtube.com/watch?v=0Wji28IFANA

Those guys are using soft sails, and still going plenty fast.

I've got to wonder how much money (and time, and ground crew, and storage space) it would save the next AC62 class if they would just switch back to soft sails too.