In reply to JohnBson:
Ledge Route is definitely in winter condition at the moment, but is climbable in any condition (weather depending). The approach may require a bit of care, but No. 5 Gully will have consolidated quite a bit recently, and should be ok. We saw a skier heading up No. 5 Gully yesterday, although that doesn't necessarily mean it's safe.
The approach above The Curtain (the blue line on the topo in Scottish Winter Climbs), moving rightwards and then up a left trending gully to the base of Ledge Route avoids having to be in No 5 Gully for long, particularly as temps look to be rising for the weekend, and will lead to the cornices at the top of No. 5 becoming unstable.
Post edited at 18:21