In reply to Unregistered:
Crikey. Is it given IV? It was II/III when we went (and did it as a three) - we started early and finished in twilight on the summit.
If you choose your conditions, it'll be fine for you.
1. Recco the start the night before
2. Start really early - so it's just light as you set off
3. Spot the traverse. really the only route issue
4. Know the way off.
One of my best winter days ever.