Really. Hmm, it doesn't matter to me what its called. That would be why I've not bothered to look into it. But I've enough sense to know they're not reliable if I get two pairs of look bindings with the same mechanism in it, and both of them have a similar issue with that mechanism inside 3 months of use in the case of the SPX12, and inside 1 month of use in the case of the pivot 14... So go away and read another binding information sheet.... Its not unlucky if it happens twice, it is poor quality or design of products that result in this. They are also completely unnecessary, which is why I would avoid using them in preference. The more moving parts there are, the more parts there are to fail. A well designed ski binding should be more than capable of lasting a decade without issues. You can still see old dudes going around with vintage kit from the 80s on that works just as well now as it did then. Not all developments are improvements. And I may be cynical, but I feel sometimes manufacturers put extra gimmicks in there that will result in failures which help drive sales, particularly when their response when you have a product failure like I described is to tell you to GTF.