Hi Leon
Your mount does not need to be level at all. The only requirement is that the polar axis is pointing accurately at the SCP. This can be done with either a level mount, or a mount tilted on the side of a hill - it doesn't matter.
Having a level mount is a good idea though, and I personally try to achieve this within reason. When the mount is level, if you want to make a drift alignment adjustment in azimuth only, then by turning the azimuth adjuster, you will get a movement in pure azimuth only.
However, if the mount is tilted, to make a simple azimuth adjustment you will have to use both the azimuth and altitude adjustment screws to compensate for the tilt.
Cheers
Dennis
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