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Raymo, Can you explain what you mean by the disparity on different sides of the merdian? If the RA had slop in the gearing it coud explain the difference. Does accuracy improve as you get near the meridian as its climbing or does jt get worse or remain the same. If you did a series of equally timed exposures on a climbing target it might tell you more about how RA is behaving. Reset and then do the same on the falling side of the meridian. I trust you still have RA balanced with more weight on the bar to keep the gears meshed.
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