In reply to Euge:
Did Towering Inferno on Hells Lum on Saturday. Great route, which deserves more attention (although it seems from the logbooks that quite a few people aiming for Brimstone Groove end up on it - it's not in the selected guide). In easy condition on Saturday as the bottom pitch was completely non-existent - did it in two pitches!
Freezing level was higher than forecast. Buttresses on Stag Rocks were pretty black.