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I have a CG-5 mount (which I don't use anymore) and a CGEM. The ASPA works well on both of them. I use a laser through the polar axis to get a rough alignment (tonight was within 7') then I use the aspa. Apart from Periodic error most nights I get virtually 0 drift over 2-3 hours, then some nights too much drift.
Firstly it is best to use 2 alignment stars - must be west of the meridian in the southern hemisphere. I then use at least 3 calibration stars (usually 4) which must be in east of the meridian. Then do the polar alignment.
If the first alignment star isn't in the finderscope then your initial alignment was too far out (but as long as its not too far out it doesn't matter). Make sure everything is tight before starting the process.
The more precise you have your location set the better.
Regards,
Tony.
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