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Agree with Julian that the longer the moment arm, the higher the Inertial moment.
This increased moment can affect the current draw and gear loading during the acceleration/deceleration phases of slews, esp if the motor has a predefined ramp up/down curve programmed in.
That said, for most scopes, if the weights are within the manufacturers tolerance, the above wouldnt be a worry, just an effect.
More of a problem is ( as others have noted ), damping oscillations if they occur.
Andrew
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