It's the high 30's/low 40's this morning and I checked my tire pressure; Front 30 / Rear 38. So I pumped them up to 34/40 (manufacture recommends 36/42). My question is this--I know that when the tires warm up the PSI changes so I was concerned if I filled them to the recommended 36/42 when this cold they would be over recommended PSI when brought up to running temp. Am I over thinking this? What does everyone else do?