When we bought the boat there were only a few wedges in place, not enough
for proper support. I understand how the SparTite system works but is
there another system that would work? Say just filling the partner with
silicon, would this allow to much flexing? How firm is the SparTite after
it sets?, does it allow some movement or does it harden as a solid rubber?

Bill, http://www.billangiep2.blinkz.com/