I just purchased a this boat. It's a pro guide v16. The previous owner had replaced the decking with marine grade plywood when the carpet was redone last year. The problem is that for some unknown reason, the main deck area was replaced with 3 strips of plywood, making it feel flimsy. I just pulled this main floor area, and the wood is still mint, but I cant stand the creaking every time I take a step. Do I need to replace with a single sheet of plywood, or can I add something (stringer like) to the under side to make it sturdy? Any advise is appreciated.