They will also recomend doing your alignments by approaching from a particular direction as this will remove backlash in the gears out of the equation and make it more accurate. Having said that, with both of my scopes (C8N-GT, C11-CGE) I have never bothered. The objects still end up in the eyepiece...so what the hey!
I guess it would be an interesting exercise to do a setup with and without using the final approach and see what difference it actually makes.
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