so the KB article is a little optimistic. We do say this
The maximum rotation rate for the Inertial Sensor is up to 1000 degrees/second.
The 1000 dps comes from the range we set for the gyro inside the IMU (which uses a 6 axis combination gyro/accelerometer). That doesn’t mean the gyro will perform well at that continuous speed, and honestly we never tested it at that speed, but it’s unlikely a robot would ever be spinning that fast.
You said you had one sensor that was working well, it may be worth comparing that sensor with the others and then perhaps performing a factory calibration on the ones that are not so good.
original forum post that kb article was written from