I agree. I have two gauges. One is definitely off by 5-10psi. Its the one I use for my RV tires which are G rated and need to be at 110psi. I figured that out when I purchased a TPMS system & it always was off by several psi.
So far the weather looks ok for this sunday. 50 degrees in the morning, warming up to 60. My combined vehicle & driver weight is 2530 with 1/2 tank of fuel, so I will start the tire pressures at 24F / 27R and go from there. I will pre-drive as much as possible to try to get some temp in the tires, hopefully. (With 400ft/lbs of torque, at least the rears will heat up quick
)
Thanks again. -John