I would say that the material is more durable than Dacron based on the aging characteristics. I plan on getting draft stripe pictures later this month. It definitely doesn't have the shape of my new race main. The draft has moved aft with aging. Unlike my race main, this sail has slugs and is flaked rather than rolled.
Unfortunately I'm not sure what the future is for the sail cloth as Hood Sails, because they filed for Chapter 11 Bankruptcy.