I am a recent Twister convert. Switched from Hart F17 Classic STs mid-season last year. The stiffness and extra side-cut of the STs made them a nice option on groomers, but the Twisters blow them away in the bumps, especially icy NE bumps, where the ease with which they can be skidded and set on edge are probably their best quality. In soft spring bumps, pretty much anything works fine. A lot of folks are on ID-ones these days, but they are extremely expensive and hard to demo unless you go to a camp. They have a "beginner's" bump ski in their line-up that seems interesting, given that most dedicated bump skis are designed and intended for competitors.