I've been doing a lot of fiberglass work lately and I've come to the conclusion that I am not going about them in the most efficient way. My general technique has been grind down (usually to the filler of a keel or centerboard), fill it back in with filler, grind to a smooth surface, start using cloth/mat, grind down to correct mistakes/voids/unsaturated cloth, fill voids in with filler or resin, sand smooth again, add more cloth, add resin/filler and sand to smooth surface and finally paint. Does anyone have any tips (@dlochner this sounds like it's right up your alley) or recommended reading material?