"BillP" wrote in message
lkaboutboats.com...
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/

Bill,
I used a system that I had seen on small racing keelboats - have a look at a
J-24.

I made a template of the deck opening and of the mast profile.

I put the mast in place and adjusted the rigging (but not too tight) so as
to position the mast with proper rake. I then measured just where the mast
was with respect to the deck opening.

I then made a plug for the mast opening by laminating some plywood - I
included a larger flange on the top so the finished unit would not fall
through. I then cut an opening in the plug for the mast (using bandsaw). I
made the plug and the mast opening slightly oversize so that the mast could
move a bit - no need to have it too tight. Then sawed the plug in half - Put
aft section in first - step mast then push in forward half.

Cost is nominal - just some plywood & glue plus a coat of varnish and mast
always goes back in same position.