I just returned from Haines AK and I was using my Burton 12/13 Diodes on a Never Summer Premier F1 size 168cm.
Bindings were solid and no failures luckily. I always watched the guide as he loaded my board in and out of the bin on the side of the heli as skis and boards were palced on top. I worry about the Carbon high back, but the buckles never iced and the bindigns performed awesome up there. So far they appear to be tough as long as you don't just abuse them.
We got 3 bluebird days of steep and deep lines after 3 days of storms, then left when more weather came in.. Typical AK..
I am going to stick with this binding for the remainder of this season and next. Any long term results I will post.