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Hi John,
My experience with a Meade LX90-10" is for Alt-az mounting, but in this situation it performs its pointing very well.
For Venus, it can be "off" by a degree, but for other planets or anything celestial it is generally within the field of view of the camera (about 20 arc minutes).
The initial pointing must be quite exact. It is not enough to "rough centre" - I use the camera and point the alignment stars to exact screen centre.
If your mount has flexure, then performing the SmartMount (? think that's what it's called) may improve the performance.
Also track an object (if you can) over a few hours, from one side of the meridian to the other. This will help you work out if it's pointing or flexure. Flexure will cause the object to drift after passing meridian.
Regards,
Tony Barry
WSAAG
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