Keep in mind tire pressure will increase as the tire heat up. I have had my rear go fro 36 to as high as 44 after it was ridden a bit. I have TPMS on my bike so I can see whats going on as I ride. High pressure give you better mileage and tire wear but offers less traction. You gotta feel it out and see what works for you. For me the 32-36 cold rule works.