In reply to boseow25:
Were you the same pair who did N Wall Groove around about Hogmanay?
I think a good lesson has been learned and you'll both be the better for it. It took me several visits to get Central Grooves in good nick, first attempt it was chocked with ice/verglas, couldn't get gear for steep pull into the easier ground above, hence backed off. On that day the wintery conditions defeated us, in my opinion.
Second time we climbed it under dry, hoared, well frozen, clear day and what a difference!
The day before your attempt, we geared up beneath Central Buttress, whiter but still wet rock, a tell tale sign about the conditions. Tilt is a little higher, more recessed so we started up that instead. Unfortunately the freezing level ascended up the crag, quicker than we could climb, we bailed after pitch 1. Sure we could have continued above but our gloves and clothes were soaked, most importantly climbing wasn't fun!
Anyway, there you have it
Regards
Stuart