Yeah. My compass (a Ritchie) has two axis calibration at the bottom; I ended up maxing out one of the axes (so it's still a bit off). Also, it tends to shift by

Yeah. My compass (a Ritchie) has two axis calibration at the bottom; I ended up maxing out one of the axes (so it's still a bit off). Also, it tends to shift by a decent amount when the car is pointing up or down steep hills.