Brule.From what I've seen, the bindings that come close to the Knee binding for park use are the Rossignol FKS and Look Pivot bindings because of the release of the binding when you fall.
Hope this helps you, OP.
Knee binding release laterally in the heel, fks do not. Yes they have a pivoting heel but that is for a different reason.
My biggest problem with knee bindings is that you can't swap skis and you are sitting really high up. My friend used them near the end of last season and never had any prerelease issues.
Apparently a lot of shops don't mount them correctly which causes a problem with prerelease though.
For an average park rider I wouldn't see them being a problem except for them sitting high and not being able to swap skis.
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