You pretty much have to, every time you launch the built-in compass app. I feel this process is mostly for the compass, not the level. The 3° are consistent, a

You pretty much have to, every time you launch the built-in compass app. I feel this process is mostly for the compass, not the level. The 3° are consistent, across multiple tries for several days. I think there will have to be a software fix. Seems like their calibration process in the factory was off or something. No big deal but annoying.