As Mylar goes, I think it is pretty heavy. The 4 rolls of clear duct tape I used to re-enforce the weakening leach and some other rub areas just adds to it's $140 prowess. I fully expect it to blow at some point, if not this race it'll be the next. Unfortunately it only has one reef point and it is a small reef. But I am packing my old one design dacron main with two reef points if things take a turn for the worse.
It actually looks like it will be more running and reaching with this forecast