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Drift alignment is a pain. I don't have an illuminated reticule, and use camera live pre/view instead. Once basic alignment has been completed with the mounts polar scope., I take a series of images adjusting in Altitude and Azimuth until drift is minimized/eliminated
Star trails LEFT adjust azimuth RIGHT - vice versa.
Star trails UP adjust altitude DOWN - vice versa.
If star trails get longer adjustment was in the wrong direction - adjust back, plus some.
Hope this is helpful.
Can you post a bigger image?
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