I hear that from others but on our beach where we have quite a fleet of D18s we pretty much agree that downhaul adds fullness. Maybe its the Florida weather or warm water. Colder UK/European/Canadian climates and Darts act normally. Warm 'em up and they get weird.

OK, it's just a theory.... <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />