In reply to mrbird:
> If they're using the Norries as a testing ground they should steer well clear of Lochnagar.
Fair enough, but I couldn't possibly comment, I have only ever done one route on Lochnagar and not even on the main cliffs: that 1st sector on the left (gost something left of transept or cathedral route).
Overall, I find the climbing on NCs routes harder than their counterparts in the north west, but by and large the approaches and seriousness make for a harder day in the NW.
I haven't climbed south of Ben Nevis in a good few years now...and should reacquaint myself with standards there!