In reply to nniff:
Good point, and watching the footage back, that looks what happened here, but instead of loading the head of the tool with his hand, it looks like right at the last instant before the fall he loads the head of the weighted tool with the other pick, which perhaps for an instant shifts the weight away from the tip of the pick and she let rip...
Otherwise, until then he had been really careful to match using just the points and so create minimal rotation, plus some good crampon work showed instants where he was taking no weight on the tools at all.
As you say, matching is sometimes unavoidable, and often the norm especially when drytooling, but I hasten to add, much easier when you know you are in a bomber, well proven (or even drilled!) hold compared to a shallow iced up crack, on an Scottish winter route!
The other striking thing in this clip is that there is no preamble or mutterings of "watch me" etc. and this seems to be a common theme with ice and mixed falls as they come often when you least expect it!
Having the time, energy and foresight to be cleaning for your next foot holds, suggests he is not necessarily too boxed, plus he quickly and calmly lets his belayer know that he is ok.
Still, what a great vid and hats off to these guys for getting out there and going all in, it looks like a pretty controlled bit of climbing right up to the fall.
Thanks Craig for posting it, and getting us amped to get out there....roll on Friday an the start of my annual ice pilgrimage
)