Great question. Knowledgeable fiberglass repair people have told me that glass blisters are caused by high humidity on the day the glass was laid up on the gel coat -- humidity is trapped between the gell coat and the laminate. It may be that Jerry actually did something different in the layup process that reduced the likelihood of blisters, or it may just be that your boat was manufactured on a low humidity day. Will look for other mail on this subject. Harvey G Wilson <harveywilson@juno.com> wrote: Hi all... I've been gong thru some of the old sailing info that I'v egathered over the years and came across several articles on Blisters that I've saved...mostly from the Cape Dory forum. As I glanced thru them, I recall the horror that I felt as I walked thru a local boat storage yard, looking at bottoms that looked like they were a patterning board at a shotgun skeet range!! With great trepidation, I went to Ft Myers, Fla. to look at an M-17. Hauling it out of the water, we washed off the crud on the bottom, and saw no blisters. I hooked the trailer up to my old Aerostar, and Stargazer was mine!! That was 9 years and about 3 weeks ago. When I took her out this last time, after being in Lake Lanier for over 3 years, I again saw no blisters!! Stargazer is a 1979 model. Have anyone on the list had blisters on their boats?? Did Jerry use a material different from other builders?? Harvey/ Ga _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats --------------------------------- Discover Yahoo! Find restaurants, movies, travel & more fun for the weekend. Check it out!