I have ran 3.5/3.5 and now 5/2 on my XPT and the differance is very noticeable. Not only does the car drive better, the steering is much lighter and your arms and shoulders take WAY less of a beating. Just finished a multi day ride covering 400 miles of mountain trails in TN with the 5/2s and Shock Therapy's stage 4 suspension work. I did the same type of ride prior to the suspension work and wheel change and I was sore for days afterward, but feel completely fine after this trip! Proper wheel offset and suspension is easier on your machine and your body.5/2 all the way. The 4/4 or any other center offset wheel (3/3) is the worst thing you could run.