experience
The fellow who taught me sailing and has over 20 years experience on me, could not beat me when he had Offshore on his Catalina 25 and I went to VC17, even his son sailing a Balboa 27. Now that they both went to 17 I can no longer keep up with them.It’s like a teflon coating, very slick when wet. 17 has to be done every year. Takes two coats first 3 or 4 years, then there seams to be enough built up for only one coat for the last 3 years. One can is not enough to do two coats, that's hull, keel and rudder. Make sure your hull is super smooth and the keel is coated before starting. Every year, just wash down with soap and water before recoating, no sanding, drys in a couple minutes.