I have a 79 Glasply that when the motor quit we drifted into some piling and put good bruise in the hull. It isn`t soft and there appears that there is no structural damage that I can tell, but the gelcoat is shattered pretty good. I think the only thing that saved me was the fact that the piling was rotten in the top so it didn`t go through the hull I`m just not sure how to fix this. As soon as the weather gets better I will have pics. Thanks