The gouge/crack below was patched many years ago with some cheap crap, but I have some left over Raka Epoxy that I plan to fix it with this time. My question is what is the best way to fix it? I've never really done a patch before so Im not sure of the best way to do it or what Oz. cloth/mat to use. There are other bad places under the boat and this is going to be my "test" run. As you can see I've sanded it down with some 60 grit so far.. Any tips/help is GREATLY appreciated!