In reply to Mountain Llama:
Despite owning over 12 pairs of Grivel Crampons that are used by clients, I never saw the crampons fall apart or lose their adjustment. However after the introduction of the accordion I saw new crampons fall apart. This happened two or three times just after they were introduced. I also noticed some clients on winter courses seemed to keep getting their crampons out of adjustment. While watching them pack and unpack the crampons I realised why this was now happening.
As I never ever fitted the accordions I initially couldn't understand why this was now happening. However when you fit the accordions wrongly you can see how this can open the adjustment clip, in certain situations.
I think the video shows quite clearly how this can now happen.
Having said all that, I still think the Grivel Newmatic binding and antibot system (without the accordion) is the safest and easiest to use in most situations.