Jerry,

If I understand what you are saying, once I have cleaned out the bad core, I fill the void until I have a 5 in. hole from deck to ceiling. then I proceed to lay in glass matting until I get to the deck level. At that point I start using increasing sizes of mat to rebuild the deck as it was. I can then grind to match the deck, fill if needed and stand back and admire my work. Oh, yes, then I can remove the Gator tape (great stuff by the way) and re-drill the holes to mount my mast step.

I plan on placing a soda straw over my mast light wires and hopefully leave them so they can be removed or fished if needed. This does mean that the glass will have to be layed gently with a slit on one edge to accomodate the wires. Also, if the ceiling does not rebound around the compression post cap, my plan is to cut 2 semi circles of 1/4 plywood and gently jack up the ceiling until it matches the surrounding area an the compression post has a litlle wiggle to it.