Geoff why do you think its a baclash?
http://www.celestron.com/c3/support3...articleid=1664
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Backlash is play in the drive gears. All telescopes have some backlash, as gears can’t be too tight, preventing the motors from turning. Backlash causes the delay in scope movement when using the direction arrows on the hand control. It’s especially a problem when moving in the direction opposite the scope’s tracking, when the lag before the scope moves can be on the order of 10 seconds if the backlash is bad.
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