I have had my Adventure Island repaired in the same spot! Not an easy fix, and it doesn't last forever, that's why they have changed the Mirage Drive receiver, to alleviate that issue! Mine has a hole once again, so I am going to attempt a repair with this
http://www.jamestowndistributors.com/us ... mail090616 Their help line said that it will work well, by roughing up the area, and using Fiberglass Cloth as a base. You can buy the repair material and hot air gun from Hobie as well, and repair it yourself, if you'd like! Any questions, just ask!