Will, I see a set of beach wheels in the background of some of the photos. Beach wheels are a good way to keep any damage from occuring during launch and recovery. Could you please explain how you did this kind of damage if not dragging the boat over rocks? Did you sail it onto the rocks? In that case, you are lucky you only had one small hole in one hull.

Here's a thought; If you had an acidental collision with a rock, hidden or not, call your insurance co. and send them these pictures, get them to pony up for the repairs, and then stay away from rocks. I get off my boat in a foot or two of water and put the wheels under it any time I move it, and that's with only soft white sand under it.