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Dave,
When you select your alignment stars you need to follow some simple rules, merely selecting stars that are widely spaced isn't necessarily a good option.
The 2 alignment stars need to be:-
1) Make the scope move more than 30 degrees in BOTH axis. Selecting stars that are both at an elevation 60 degrees above the horizon and 180 degrees apart isn't much good.
2) Don't select stars too close to the zenith. Max 80 degrees elevation is good.
3) Don't select stars too close to the horizon. The effects of atmospheric refraction will cause you to get incorrect altitude readings and hence greater pointing inaccuracies.
I have "Auto Adjust On" enabled hence I don't get "warp errors" when I do an alignment, but when I disable Auto Adjust I invariably get warp errors of less than .1.
CS-John B
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