Haven't had any problems with these in my ski boots (Dalbello Krypton Pros). As a matter of fact, these have been a savior for me, and my feet have hurt less using these footbeds than in my 22 years of skiing. And for the record, I drop 15-30 foot cliffs on a regular basis, in addition to backcountry booters. Not huge, I know, but big enough that it should cause a problem from "hard landings" if it is indeed a problem. I know people who use them in their ski boots and go even bigger than me, and haven't had any problems either.

Also, the Yellow Superfeet insoles are the ones made for ski boots.

Haven't had any problems with them in my tele boots.

Not a question and not strictly accurate either. I jump on skis all the time with cupped insoles, no problems so far.To put it more bluntly: 'kboniface' is completely incorrect. The vast majority of stock ski boot footbeds are flat so they can fit the majority of people's feet without having any high spots (which would cause immediate pain.) Custom ski boot footbeds made by an experienced bootfitter at a ship will *always* rise up to support the natural arch and curves of the foot, including a heelcup. -Phunk