Hi Martin
Thanks for the response.
Have read, or at least scanned the manual (and a thousand other things in last few weeks) and was aware exposure was too short but had forgotten to adjust.
Good point on an unguided test - will definately give that a go. Subject to other advice was intending to do PA as normal, calibrate and then run Guide Assistant again. If still getting significant PA error will have a crack at a drift alignment.
Still can't believe I could be 4 degrees out but something is clearly off.
Cheers
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