Clutching is actually almost Identical. My 05 firecat and my buddys 06 crossfire have the exact same weights, both springs and helix's. Both even have the 10" secondary, the crossfire has a longer centre to centre so thats the reason for the different belt. A 06 firecat would have a different helix and the 10.4, thats the only difference in clutching there.
Crossfire has the same cassie and tunnel as a 144" M series sled with the firecat front a-arms and suspension.
The crossfire is a better machine in every aspect IMO, except top end. His 06 has hit 105 on good trails where my firecat would be running around 112.
I'm gonna trade my firecat for one if that tells you anything.