I'm using Bighorn 2.0 and Polaris Wheels.
I run 5 PSI in the front, and 6 PSI in the rear.
Depending on the trail types you ride, you may have to try different pressure settings to get the ride and traction you want.
Where I ride, it's a constant change of every element on the trail.
I think I started with the recommendation of 7 PSI. But if you come up on a sharp hard clay turn with a layer of sand on it, it would slide a little, which was not a comfortable feeling for me. Lowering the air pressure solved the problem.
On the back, I have the same width tire as you, 11. If you run too low of pressure like I have, and slam sideways into a deep rut, you may break the bead loose from the rim. Then you have to clean the sand or dirt off of the bead and rim to keep from having leaks again.
The BH tires and AWD turn that machine into a dirt flying, mud slinging Beast! You'll love it!