I purchased a 1979 browning 17' 6" project boat off of this guy with the intentions of just replacing the motor and running it down the lake. Once I got into the project i realized the soft floor around the walk thru area. So I made a few test holes and I found rotted ply. with a few cuts of a skill saw I made the assessment to replace the whole deck. In the process of replacement the saw was set a little deeper than 3/4 of an inch and I made a cut through the hull. Biggest part is I didn't know what to do about the hole. Well i started searching around and found MAS Epoxies. I used a combo of heavy glass matting and light glass matting to repair the hole in the boat. I also used the Flag Resin and medium hardner on the deck. Now she's good as new and I'm out on the lake enjoying life on the water.