When you run a program, the inertial sensor starts a calibration sequence, the first second of that sequence does not look at gyro values, it just waits for everything to stabilize, so any movement from touching the V5 should have stopped. It won’t hurt if you restart the calibration at the beginning of your program, I’m just saying that it’s not strictly necessary. You can also choose to manually recalibrate the inertial sensor at any time by going to the dashboard and selecting calibrate, you can do this while user code is running (press the V5 power button, then the V5 brain/devices icon etc. )