The problem with pure climbers is that they are so light they tend to bounce around on the cobbles, and as such find it harder to put the power down and remain stable. I think the early pave stages will prove equally difficult for all the main contenders and they will keep their powder dry until clear of them. Expect to see the likes of Sagan and Cancellara doing well (obviously their kind of terrain), and I would expect Saxo, Astana and Sky to bunch up around their leaders to protect them and pace them back should they drop off in those sections. Having said that ever since the course was announced you can bet the DS's will have lined up a healthy dose of Pave for the team recon and training, especially for those who've never ridden it before.