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Hi Roger
I appreciate what you are trying to do but, in my opinion, nothing beats a reasonable Drift Align, at the most it takes me about 15 minutes and is done during twilight, that will get you well under a degree from the pole and, in which case, improve your tracking.
I feel you are way to high with your Guide Speed, in my opinion, what is happening is that you are getting an ocillation. Guide Speed with the Autoguider Port is 0.8 as default. I personally would drop your guidespeed vide the Hand Controller to 0.5 - 0.8 and see what happens.
My understanding of GuideDog is that those numbers you mentioned are for the amount of time the guide mode is operated, not the actual speed. On my non-gemini GM-8, I still have to set the guide speed to 0.5 using GuideDog.
Hope that helps a little.
Cheers
JohnG
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