35C We have been sailing Knot Conforming (fka Synergy)for several months now and have been very pleased with her. At first we, being unfamiliar with S2, were concerned with quality. After hours of research we decided to purchase a 35C. We have no regrets.Quality is there. Awesome layout for family of five. My wife and I can sail her with three small children with ease. The sailing aspect is great. She easily does 7 knots with fairly light winds. S2 had done their homework here and it is a shame there will not be a next generation of S2's.