Well, I made the change. I still have an 07 Attack but got an XTX last week. I only have about 100 miles in the saddle of the XTX on trails that have marginal base and snow. My impression is the attack when set -up correctly will handle as well if not better. On my attack with stock ski's, 8" carbides, limiter shortened one hole, weight transfer set half way between standard and minimum, 13mm sway bar and front shock preload reduced to almost nothing; it handles great. Yes it's heavy and hard steering with a little inside ski lift but, hey that's why I go to the gym. The XTX I have reduced the weight transfer to 1/2 turn away from the red line, shortened the limiter 1 hole, reduced the preload on the center shock and the compression dampening on the front shock; it's still tippy and doesn't handle as well as my attack. Last but not least the xtx has some minor problems you will have to address. Fender washers and reverse bolts on limiter or it rubs and will eventually fail, massive ice build up in the tunnel so fabricate and install a block off plate, excessive hyfay wear so must fadricate or come up with another set of wheels. I have no idea if it has over heating issues??? The jury is still out on the XTX. I have to wait and see if my wife likes it if not it may be up for sale next week. It has the 10.4 gallon tank, hand guards with dumbo ears,bar riser, taller shield with side wind deflectors, mirrors, 5 year warranty and the cable grab for off trail stuff. I should have bought Knaps 07 Attack!