tigertiger,
I've been the screw tight keel route with another of their boats. The wing-nut had to be very tight to keep (most of) the water out. Setting the bolt in the keel very well is a must. I didn't try adding to the seal with grease, wish I had. Did try stuffing the keel box with several different things so that the 'squeeze' would be more water tight. Good results? It didn't sink, but I'm afraid that's about all I can say for it. The CA did work well... till I decided that getting the wing-nut tighter was the only thing to do. @#$... epoxy wouldn't have done any better, all things considered (as in how tight I thought things should be) uh, wouldn't advise that, the -very- tight thingy. Don't you just love learning by making mistakes (Yeah! As long as they are someone else's!)?
- 'Doc