In reply to Mr-Cowdrey:
Had you climbed the whole route before it fell off? Seems strange it would come off abbing rather than on the steeper climbing where the impact of kicking might cause a shearing type motion?
Actually thinking about it, were you using the plastic attachment? When we were abbing off that route we met a couple at one of the belays and the girls crampon was very nearly coming off with the maestrale and some crampon with a similar horseshoe type front attachment.
Perhaps they dont fit those types of attachments at all as the side to side movement when she was kicking in seemed massive, as in the whole front of the boot was slopping left to right across the front of the crampon.
FWIW, a mate of mine has climbed extensively in this very boot up to about m6 with I think DMM terminators or maybe petzl lynx as well in the past couple of years? As long as you use a wire front bail most crampons should be fine.
Post edited at 10:18