Just a quick question, not technically about sail trim.We have a 1989 Hunter Legend 37. Our current mainsail is the originalone htat came with the boat (we think) and has just disintegrated along the reefing line. It was fully battened.We are looking at buying a new mainsail, the loft we are dealing with keep telling us that they will make one to the "exact spec that a Hunter 37 has with a fully battened main". We were asking for a fully battened main as that is what we had currently. They also tell us that the roach will overlap the backstay by about 4 inches, which is apparently again to Hunter spec. The measurements they want are the IEP and J - which are on the brochure. Our current main doesn't overlap the roach, and I am not so keen on this idea. I am told this is "usual", but I have never seen it. I am told that it will make the sail more powerful, but this model (we have a shallow draft keel) is already overpowered, we spend a lot of time with the toe rail in the water, or the main de-powered already, so again I am not keen. They also mention a "universal standard size (there is a sail plan for every boat)" to my suspicious mind that sounds like they have a basic one-size-fits-all sail pattern, and don't want to change it (at least not in the price range I am talking). Can you give me any information on a fully battened main with a roach overlap - I would be very grateful. If anyone knows anything about the "universal sail plan" I would be very interested as well.Many thanks,Linda