In reply to illepo:
I use snapgates but even the small ones have a tendency to get pushed over the pommel/handle which means gripping your axe is suddenly awkward/uncomfortable and a pain to put right when half way up a route.
The solution was to tie a small loop of 5mm cord through the spike at the bottom of the axe and clip the snapgates into the cord loop. Problem solved, and plenty strong enough.
Post edited at 12:02