ETM- I had the ice in foot bed problems also. Burton sent me out a pair from some cartels. I've yet to install them.
Those highbacks of yours look beat up. What kind or riding are you doing?
I just freeride, no park. I subjected these bindings to exactly the same riding as my burton customs and flow nxt-ats all of which I have never had a problem with, the diodes were a problem literally from day 1.