I think he means the S-Coil by Simms. Which stabilizer you use depends on the bow, how you use it and what you're after. The stabilizer serves a couple of functions; balancing the bow to stabilize it on target, making it drop upper limb away at the shot (rather than upper limb toward you), and deadening noise/handshock. By adding more weight you're going to make the bow point better. By adding more length (and weight) you'll make it follow through after the shot better and weight along with all the trick add-ons of mercury, sand, sound suppression (Simms, Doinker...) will dampen the shot better. You'll need to pick the combination that's right for you and what you're doing. Personally I like a short, light supression system (Simms S-Coil) for my stalking and mountain hunting but if I were in a tree stand exclusively I wouldn't mind more length and weight.