I am shopping for a new mainsail, and am looking at dacron to remain class legal keep the expense down. I have spoken with a few makers about cut and have received differing opinions. One maker says you shouldn't use dacron in a triradial design because the sail looses its shape quickly, you should only do a crosscut with dacron. Another maker says triradial is fine with dacron but specified use of Contender's Radial Wide dacron, which is apparently made specially for radial constructions. A friend has one of these and loves it - the shape is fine after three seasons.
There don't appear to be any class restrictions on the mainsail design. Are there any opinions out there on triradial dacron mainsails? Anyone using one? I'm also considering adding some roach so that the sail will hit the backstay tacking over. Is that legal?
