Anyone out there have any good or bad experiences with Blake Seacocks? I'm thinking of replacing a 3/4 and 1 1/2 inch seacock on my boat with these. It's not a bad deal, especially since the thru hull is part of unit. My main question is if a thru hull is removed, the original hole is probably a bigger diameter than the thru hull portion of the Blake. Would that pose much of a problem if the gap was filled with 5200 or epoxy? Thanks, Manny