To add to what Sailing Dog mentioned the boat is likely to have blisters. As I mentioned in an earlier post our boat had blisters and after peeling we saw they were much worse than suspected. In the 70's builders did not know what they know today about fiberglass. If you have a void because the glass is not completely wetted out you will get blisters. We would have been better off to buy a newer boat for the money we have invested so far. Caveat emptor (sp?).