I'm going to have the keel off my C30 in the next few weeks. I have the "Catalina Smile" and some leakage past the keel bolts.I'm going to do the keel stub bilge repair to get the wood out at the same time.Has anyone found that the keel bolts needed replacement? If I find corrosion damage to the bolts:1) how do I get the old bolts out?2) How do I set the new bolts into the keel?I've talked to some of the shops that do this kind of work and their answers have been less that satisfactory. Somehow I doubt that sistering the existing bolts with lag screws driven into the keel from the bilge is a "proper" repair.On the other hand, do I need to drill holes through 6-10" of lead for access to put nuts on new bolts?I'd rather do this once, right, and never worry about it again.