Road test of the GXP in the Oct 2006 issue of Car and Driver. Enjoy.
This may be part of it. I've never heard good things about the GS-2s and it is my understanding that the GS-D3s were WAY better than the 2s because, quite frankly, the GS-2s suck (Which is not meant to take anything away from how good the GS-D3s are). You might want to message Nigel about this one though since he's the TireRack expert.GOODYEARs
I've never gotten the promissed traction with a set yet.....