In reply to Dark-Cloud:
I've read the other posts but they're not right, Dynafit are not DIN rated, and any release comparison would only apply when the binding is in ski mode, when it can release.
How will Dynafit release when the toe is locked for uphill mode?
As far as I known in uphill mode in the Dynafit binding there is a physical blockage, i.e. a piece moves across to prevent the toe from coming out.
There is no DIN setting in Dynafit for any mode, locked out means locked until the binding is forced open by which time your ski could be wrapped round your ears.
So as I understand it the ski can be ripped off by the force of the avalanche, or it might stay on if your leg is ripped out it's socket, due to the forces on your knees or ankles, either scenario is not good.
I don't have these bindings but am attracted by the weight saving, but the non release in tour mode puts me off, having been avalanched and buried previously.
If you can direct me to any tests at which Dynafit release in locked mode then I stand to be corrected.
Post edited at 11:31