Hey mate

I had this exact problem but the difference was i noticed it half way through the Australian hobie nationals and decided if it brake we'll get insurance money and well kept on going. It didn't brake and we had alot on. Unless your going to have the boat for another 10-20years i dont think to sleeve the hole is the way to go because if the epoxy gives way well it doesn't matter that the sleeve is there or not. All i did is re fibure glass it and drilled a new hole. you cant tell the difference and the bolt just fits which means no wearing. Well there will be wearing but not much not much at all. The important thing is just to fill the hole up and make sure it wont go and thats it.