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Declination drift and tracking errors are two separte issues, independant of one another. If your camera is oriented square, then it should be pretty easy to tell which is which (e.g. up down or north south trails are drift, left right or east west trails are tracking). A diagonal drift indicates the presence of both. Trying to isolate just one of the two issues will help - as neither are related to one another (ie, PE has nothing to do with polar misalignment etc.).
My advice is tackle polar alignment first. Once you can get a star to remain fixed relative to north/south for several minutes you'e there. Then you can tackle PE / jumping RA drive etc (a much harder task).
Good luck,
Paul
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