How is this mouse? It looks really comfortable, and I've heard good things about the sensor; however, the max tracking speed seems pretty low for low sens tracking... any thoughts?

I'm an interesting position when it comes to purchasing a new mouse. I've had a DA 3.5G for the past 2+ years, and it's worked flawlessly.
However, I have recently adopted a claw-grip style, and some of the games I play require a really low sens (63cm/360 in Tribes: Ascend).
What mouse should I buy that has excellent tracking at low sensitivities, and is more comfortable than the DA? Would something like the IME 3.0 fit the bill? Thanks!