Looking at how skinny his upper body looked at Donostia I find it hard to belief that he's actually 63kg at 171cm.
I also have to agree with Red Rick that it would probably improve his recovery and his TT, not his power to weight ratio.
For someone like him 61kg shouldn't be so low that his power to weight ratio starts getting worse.
Let's wait and see how he does at the Vuelta, but right now I get the feeling that the team doesn't really know how to develop him into a gc rider...
I also have to agree with Red Rick that it would probably improve his recovery and his TT, not his power to weight ratio.
For someone like him 61kg shouldn't be so low that his power to weight ratio starts getting worse.
Let's wait and see how he does at the Vuelta, but right now I get the feeling that the team doesn't really know how to develop him into a gc rider...