I tend to agree, without some structural part of the ski being made to hold that shape, my guess is that it won't hold the rocker at all...it's likely that it'll just return to zero camber, or regular camber in time. I tried to soften up a pair of libertys last season, supported the tips and tails on the backs of two chairs, and used bench weights in the middle of the ski (yes, it was super sketchy)...didn't seem to do alot really, they softened up some, but not noodle soft, and they certainly didn't go reverse camber/rocker on me.