The Selden carbon rig (aluminum boom) is easy to tune from the turnbuckles, between races, as with other keelboats. Both the jib and main halyard exit from the mast and hook into fine-tune purchase systems, which allows draft adjustments on the fly and eliminates struggles common to horn cleats. The cunningham and vang are not led outboard, but each is reachable from the legs-in hike position. Jib leads are 2-to-1, with adjustment stops on short transverse tracks. All-in-all, the judges say the RS21’s simple front-of-the-boat layout won’t intimidate inexperienced crews, but the ability to easily play with sail shape will appeal to more advanced tweakers.