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You have to do a one or two star alignment a few times to get the
Go To working properly.[ It becomes quite easy and quick with practise ]. You have to adjust the mount's altitude and/or azimuth setting between each alignment routine.
If you are only doing visual, just setting the altitude correctly, and
aligning the mount due south [NOT magnetic south] with a compass
will allow quite good tracking. You only need accurate polar alignment for
long exposure photography.
The mount will not compensate for poor alignment by using both motors.
It cannot do that because of a thing called field rotation. To track
accurately, an EQ mount has to be very well polar aligned so that only occasional nudges are needed in Declination. An alt/az mount does not
allow long exposure imaging due to the aforementioned field rotation
that it suffers from. Your last point refers to a polar alignment routine,
which is different to a star alignment. The star alignment is performed
so the scope knows where it is in the sky. Confused? There are many
tutorials on the subject in Youtube.
raymo
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