Why do you need a stiff boot for riding?
I mean, why? I believe that the only place where it is useful is groomers and ice. I've got a Lange Comp 120 and they are perfect while i'm ripping hard snow, but hell, they can't absorb any little bumps, they transfer shock right to your shins! And they require very accurate landing on the whole ski (or in deep pow), because when you're landing on your tails you got your shins banged (especially if your skis got a stiff tails). And in the pow your slightest front/rear movements are transferred to your skis instantly and if you go slow and your ski toes are short (like my 186 mojos) - you will sink.
What do you think?