Re: Repairing soft spot/indentation in Fiberglass sailboat hull -
While afloat the support is uniform, unlike a poorly blocked boat on pads.. Not sure you need to worry too much beyond strategically placing pads near bulkheads the next time you haul, and/or put a bit more weight on the keel in the first 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"