I rode these skis about a month ago.  They are relatively stiff, but not crazy stiff.  However, they are super heavy and very damp.  I took them through a mini jib park and could barely do a 180 off the little butter rollers.  However, skiing fast on them through variable terrain was awesome.  They were very stable and quiet at speed.  I would say if you're looking for more of a big mountain twin, these are a great choice.  If you're looking for a ski to hit jumps with and ride the park, there are much better options like the Surface Live Lifes or the Line Elizabeths/Bacons.