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Actually, I would suggest that the mount should be imbalanced such that on loss of power (and no breaking) the scope will automatically settle in a predetermined orientation. ie) If you made the counterweight shaft heavy on the RA and primary mirror end heavy on the DEC, the scope will automatically park upright and pointing at the pole. You could have the imbalance torque 10% of the motor torque to achieve this without any meaningful loss of performance.
I would also suggest that the shortcomings of the ASA system are not necessarily inherent to all direct drive telescope mounts.
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