What type of dacron do you use on the new C30's. Ours is a 1975 model and will be purchasing a new furling genoa. How does it compare to: - Premium Nordac4800 fabric, (type 52?) ?? - Contender Supercruise used by Syd38 & Northshore yachts australia - TNF Dimension Polyant ?? Looking for durability and stretch resistance. Regards, Peter