I have two G11Gs running Gemini II.? #1 I use ASIair, which plate solves and does its thing, no model involved.? However, when I DID use it for observing, the mount was accurate with a decent PA and 2 or 3 stars in the model - but if I put in more stars the mount became more accurate.? The most stars I ever used was, if I recall, a couple dozen.? But I don't know if you'd notice a difference after 5 or 6.?
Same with mount #2 - it's my visual mount now.? I have 5 or 6 stars in it, and it's extremely accurate on the East side, less so on the West side, which means I need to add more stars on that side of the model.? But even on that side my target is within the finderscope, usually within a low power eyepiece.? In my experience, the more alignment stars you give it, the more accurate it is.
According to my understanding of how the mount and Gemini (or any goto mounts) work, it makes sense.
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~~Aaron
Aaron Lovett