what conditions would you look for to climb mountaineering routes like the ridges on ben nevis?
I can get the principle of gullies needing the build up of consolidated snow and refreeze cycles, but its not clear to me what ideal conditions are for ridges which could be done in summer as rock climbs.
would ideal conditions be a certain amount of snow?
is temperature going to affect it if things are abit melty?
in the interests of learning and the proviso of no stupid questions, I'd be keen to hear any opinions