Marty, other than Quantum, all the 52's are using 3di sails... they have a great shape from the loft, but don't seem to be particularly durable. IMHO a grand prix product and not really money well spent in our neck of the woods. Quantum in Seattle should be picking up... change of ownership recently, so they're working very hard to please. Ballard sails are also doing very nice work. Like you say, we're fortunate to have so many good places to chose from.
To kindsail, many lofts use CNC technology to cut tri-radial constructed panel sails... kevlar, dacron, etc.... They're great and can be very durable for club racers, but haven't been used in AC races in a good long while. 3dl and the like took care of that.
Last edited by puddinlegs; 11-01-2011 at 03:15 AM.