Hi Chuck, I just spoke with Mike Digh, Admiral Marine, Denver, NC, (704) 489-8771. Mike has done fiberglass and gelcoat repair on a number of U20's over the years...does a GREAT job! Mike is semi-retired at this point...picking and choosing what projects he wants to work on. I recommend taking some photos of your boat repair project, sending them to Mike and giving him a call. Regards, Dean Nelson, U20 Class East Coast District Chair