I though he was pretty light on the glass. I don't know how he spread the 5200 but I gotta imagine it would be like troweling silly putty.
I will be doing my transom in the next couple years so I'm always looking for the best way to do it. Is it possible to fit in between the transom and he back wall of the deck and no have to cut into the floor?? Gonna be a squeeze but I think I will work if the cap is off??