Its taking me a long time to get the hull cleaned up with the grinder but im getting there. I ran into the previous owner at walmart one day and i asked him about the repair that was done before i got the boat and he told me that he had used about 25 gallons of bondo glass "Jelly" to put in the old stringers. He got 5-5 gallon buckets of it at wholesale price and now i understand why there was so much crap everywhere on the inside of the hull. This is why i been grinding so much. 25 gallons of fiberglass jelly is a lot!!! It was the bondo brand Jelly that they sell at walmart. He had 25 Gallons of it and thought it was doing good to put it on everything!!! Now i dont feel so bad grinding so much! Bondo jelly is like stray glass strands and cloth and waxed epoxy all mixed into a container. And he poured it 5 gallons at a time and smoothed it with trowls! That has been a pain in the ass!! Well i thought it was me that is slow but now i got a little of my confidence back. Im ready almost to put in some new stringers and move on with this project!