I guess since my boat is 707 then my boat was the next one built. That is my understanding at least.
I have had no problems and I have the kevlar hulls too. I haven't sanded through them though. The only issue I have is how the hull is fairly dent prone but we have discussed this. It doesn't help that I fell off the top hull and landed on one heel when I capsized the last time. I didn't puncture the hull though. I may have created a problem when walking on the bottom hull too (separated a stringer??). The starboard hull took on a little water but I believe I fixed that by reseating the front beam with silicone.

Overall I am very impressed with how strong my boat is given some of the conditions I have sailed in. I wouldn't hesitate to take my boat out in 20++ winds from a structural standpoint.

How hard did you hit the rocks?