I may be in the market for better sails soon. I can't afford new sails, so am looking at the used market. I gather that used sails are sold based on, basically, how crispy they are. The seller really has no idea if the thing is blown out, or not. Would there be any way to get some idea if a sail has lost it's shape w/o putting it on a boat and sailing? Maybe, string it up horizontally on land so each corner has the same tension as on the boat, then look at the depth of draft? Maybe simulate wind pressure by filling with water?