I carry a couple of long sturdy cable grips in my bumbag/pack for such occasions...
Yeah was infuriating to see Jack cruising away from me and sub max speed down thresthwaite. Its never happened to me before, Innov8 grip usually wears quicker than the shoes for me. Tempted to go VJ given how great the bold is for oing (I haven't just decided after reading your log tomtom).