In reply to Shaunmash:
We did the bypass on the south side of the ridge when I did the route in March, in soft unconsolidated snow. It was initially an easy scramble down, but the traverse across the subsequent snow slope back onto the main ridge felt very unstable and dangerous. The snow sloughed away beneath my feet two or three times, resulting in my nearly losing my footing at one point, and shortly after we could see where there had been small natural avalanches on the same aspects in the last day or two. Scary stuff!
Abbing direct down the steep section would have been a lot safer.
I should add that on the day, the snow conditions on the south side were quite different to the crest and the north side of the ridge, due to greater exposure to the sun. The snow on the crest was reasonably well consolidated (and trampled down), and on the north side was hollow and suspect windslab. I can imagine that the southern bypass would be just as dodgy in powder snow. We didn't investigate the northern bypass, but it would have been a no-go in the conditions.
Post edited at 16:54