I just purchased bass boat and noticed the wood under the casting deck is pretty well rotten. What am I suppose to do about cutting top layer, I guess the fiberglass sheet that covers the wood. Should I just cut about an inch or so away from edge, save the sheet, replace the wood, and fiberglass piece back in? The rest of the deck feels solid, except for casting deck. I may be going about this completely wrong. I know there's probably a discussion on here somewhere but I don't know where. Any advice would be greatly appreciated. Thanks