I am taking out all the (wet & rotten) foam and wood in my 83 Sea Ray Seville. While cuting out the floor I cut to deep with a jig saw and made a 6" long cut through the hull. I have read alot about hull repairs and see that you should repair the outside and inside of the hull. In this case because the fiberglass was cut (about a 1/16" wide 6" long") and not smashed or cracked, can I fill the cut with peanut butter and then lay up fiberglass over it from only the inside? I really don't want to grind out a bigger hole then fill it back in from the outside.