We (Hunter Riddle and I) have been using the F16 documents to measure the sails. This was what Hunter used when he and Mark Smith started developing new sails. As we get the rules for the new class firmed up we will post the measurement system. The idea is not to have to measure every sail but to give sailmakers the ability to measure and mark sails with the size. I will also publish what we find measuring existing EP sails as well as the one's Hunter has built. I have measurements for the Europe sails that Charlie Trinque has as well as several sets from the 1000 series (Alter Cup boats from 2006). Hope to get hold of an older one that Charlie Harp has soon (USA496) just for comparison.