[Yamtt125]

Finster,
and the boat was in MA, so the beaches most likely were not soft sand.

Fellow...
the glass directly under the stringer, where the hole is, is not 1/2 in thick, you can see that by the pics above. But, i do believe that the glass on the hull on both sides of the stringer is 1/2 in..you can just tell by knocking on it...if that makes sense, and i know the hull near the transom is pretty damn think, so i expect it is all like this.. Is it normal for there to be the differrent thicknesses?

I don't think its a structural problem, like i said before, the glass feels and looks very solid, and you can't see any delamitation of the glass where it joins the stringer and the hull. Sorry if what i'm saying is confusing...its hard to explain, but thanks for the help thus far.
-andrew