Hello Dell:

Only racing the J for two years I find the Dacron main refreshing. It may be a few pounds more than a string sail, but I love the durability. My 4 year old North has been through hell and still has great shape, a 3DL or any load path would be junk by now. The shape of a "wing" has not changed in a thousand years. I love Dacron

Sincerely
Eric Jones
Rifiki