Just to clarify:
Are you saying the exterior of the keel was glassed over, closing the centerboard slot? With the board still in place?
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
1984 Fast/Nicholson 345 "FastForward"