Thanks for the replies!
I've got an ONAG on the scope so I might try collecting data into two programs at the same time - from both the guide scope to TSX, and the G2-8300 to CCDSoft and compare the results.
The manual I'm reading says min of 10 min so I assumed that was 4 turns of the worm. But I guess the number of turns is indicated on the graph by the vertical lines (?), so I might have only collected 3 turns. I will certainly try more.
So, question. Is it possible to correct 2 arcsec PE error collecting data when seeing might be 2+ arcsec? r, is one bound to wait and wait for those rare steady nights?
Peter
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