What you are looking at is a repair of a repair of a repair, let me explain. About 14 years ago when we bought this boat it had a problem with blisters that the yard assured us they could do a permanent repair on. As I really liked the boat we had it fixed as part of the sale.It was pealed and then sealed with interlux. Two years later when the boat was hauled the problem was back only worse. The yard that had done the work ran from any responsibility and quite frankly we had no faith in anything they could be forced into anyway. As fate would have the yard I was in was part of the same chain and when I decided to fix myself. After stripping the paint down to glass I ended with what was a white resin starved surface. This did not look promising as a surface to be working with and after picking at a blistered spot with a wood chisel and then a tool I made the results were what you see in pictures 1 & 2. After taking it done to green glass I reglassed the bottom with 3 layers of glass using 3M vinlester   resin. My thinking being that covering the old glass with out taking it down to a "green surface" is like covering over rust instead of cutting it out, the former never works and the latter can last longer that the original if done properly. It was then faired with 3M blister repair and 3M fairing compound. The next 2 pictures are of when it was hauled in the fall of last year. There was wide spread failure of the blister repair compound that was used in the fairing. The glass work was intact. All the fairing had to be chipped and then sanded off. What was clear from what I saw here was that mixing hardener and resin in anything other that a liquid form will not work for below the waterline work. The bottom was coated with 3 coats of your light resin before fairing with mirco balloon's with your flag resin. It then was coated again with 3 coats of the light resin and that is when time and weather caught up with me. In the spring it will get the flag resin applied followed by 2 coats of interlux for color. Sorry this was so long but this repair of repairs is becoming more common and thought this might all be of interest.