The Rig was "actually" Dyno'd, did not keep any paper work it was three years ago.
The PC Three only corrected the Air Fuel Mixture Ratios to correct levels. It is still on the Standard now and was mapped for the S exhaust that we ended up with.
I will also say, don't trust the Power Commanders right out of the box either, even if the Vendor states that they are set for your Rig.
If your looking for seat of the pants improvment, saying this from the stuff in YOUR signature line. You are needing a Turner Gear Reduction, to get you back to the Zip your looking for with those Big Tires.
http://www.turnercycles.com/
We have one Big Rzr and even backing down to 30 Zillas, the Gear Reduction was Priceless. But as you probably know, then comes Turner Axles, better input and output shafts, it is a slippery slope. One we wouldn't do again. Your Rhino axles won't handle the Gear Reduction, Evos will , but not at very high speeds.