: Ok, end result is that when moving down from the top of the deck to the shear
: line, I've got a hollow in the surface for about 5 strips where it should
: be convex. the hollow is about 4 inchs by 8 inches, with no stations
: underneath. I figure I need to move the surface out about 1/4 of an inch
: at the deepest part. I'd like to push the dent out, so to speak.

: I can think of one way to do this, that seem really dangerous. That being to
: get a towel wet with warm water, place it over the hollow, wait for the
: glue to loosen up, and push out with a board cut to the curvature I want.

As a first line of attack, I think you're on the right track here. How about cutting a form or two to go under the problem area? It/they could be interpolated from adjoining forms. Then you could make a halo form or two as in the pic, strap it/them down tight, wet down the area to relax the glue, and give it a couple days to come around and dry out.

If this doesn't do the whole job, you can still do saws, knives, power tools, infills etc. later on.