This is along the lines of my Heq5 but not as bad as you would think. With a 3.5 kg refractor the guiding error is less than 0.6 . With the 10kg 200 newt the error is more than 2 but still achievable for AP when the objects are overhead or in the West with 2x 5kg weights plus a 1 kg SA weight screwed on the end.
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