In reply to Percy2012:
I would say it is indeed a different ball game. You would also find An Gearanach quite a challenge in these conditions I suspect too.
Doing the wider walk over Mullach nan Coirean (sp?) and Stob Ban would be good, and then if it's too challenging you can cut off back down to the glen at that point. If not, you can go over just the Devil's and descend, or miss that and continue. If you get as far as Am Bodach, there's no easy way down other than going South, or re-tracing your steps to the Ban/Iubhair bealach if I recall.