Have been doing some restoration on my 1976 AMF SLICKCRAFT (SS-206) over the last month or so. I have so far concentrated on replacing damaged/rotten wood. I first tackled some weak spots in the floor and everything went well. My next task is to address an area of wood rot in the transom. Damage appears to be contained to about a 12 inch radius. Went to a boat repair shop today to discuss costs and the best method of repairing transom weakness. During my conversation with the fiberglass repair guy, he brought up "fact" that asbestos was used as a filler in the construction of many boats in the 70's. Although I have been using a protective mask while doing the necessary grinding, cutting and sanding of the old fiberglass in my boat, the idea of generating an asbestos cloud around me and on me raises a concern. I ask another boat dealer if he had knowledge of the use of asbestos in fiberglass boats and he said in his forty years in the boat business he had never heard of such a thing. My question - Who is telling the truth???