I have a spot on my Ranger where the old trolling motor bracket made about a quarter sized chip in the gel. It is poly flake and just reached glass. I had been covering it with duct tape and because its under the current trolling motor when its out of water, all has been fine. Now I want to fix it and was wondering exactly how. I know you can't sand poly flake, so should I just give up and use solid gel? I have done plain gel before and it has always turned out perfectly. Thanks