OK, were ready to pop for a new set of sails. We are very avaid fans of our club Wed. nite races, so performance is our goal. It seems all lofts claim to have the best cloth, design, life, not unlike the current political ads.Light air > 5 knts. is where we need the most help. Our PHRF of 227, puts us on the fast end of our fleet but our boat is, of course on the heavy end of the fleet. this makes it tougher to compete with the lighter boats.I'm thinking along the lines of a loose footed main, top two battens full, cunningham, one reef point, and adding a 3 or 4 to one outhaul.Also a 150 Genny on the Hood roller, with two draft stripes, telltail window, rope luff for sail shape when reefed.How can I learn the facts about the cloth, and be able to choose for my self. What about Mylar for this useage, what are the advantages, disadvantages? Any pointers you can offer on this sail replacement subject will be a big help.ThanksStan