I'm thinking about going with the ITP GNCC's for the fronts now. I had thought I would get the Razr 2 with the idea of getting matching rears (Razr's), but I think that I'm going to swap out the fronts for this year and see what comes available over the next year for the rears. I don't really have a problem with the rears other than the fact that they puncture too easily. I think that too much traction in the rear of the XX may not be a good thing. The GNCC's are a great tire. My buddy has them on his Outlaw and loves them. It turns real nice, I can tell you that.
I am looking forward to your impressions of the Razr's on the front!