We were lucky in Feb, great weather, so too our traverse in May 3 - 4 years ago. I think it would have been extremely interesting if the weather had been dodgy on our Feb trip - the snow was not in good condition on the west facing slopes as we headed north, but very much harder once we turned NW. Crampons went on then, but would not have helped much before, too soft. And that was the problem - and it masked any paths. Trying to find a decent route in clag would have been fun - and made an even longer day! I guess you'll go clockwise? Just keep left of any difficulties.
We tried to do the traverse in Feb 3 - 4 years ago too, but whilst there was minimal snow, everything above about 850m was covered in verglas. Just a thin layer, on every surface. We had two inexperienced people in our group of four so abandoned the idea. The next day saw us on the hills to the south, which we abandoned after more or less crawling to the top. The heavens opened and didn't stop for 2 days and we were lucky to get back across the river to the bothy. Serious floods!