For visual, a drift aligmnent should not really be necessary. Do a 3-star alignment with the handset and check the polar alignment error. If its a long way out, follow the instructions and adjust alt/az bolts then redo the 3-star alignment.
For astrophotography, use the PHD2 drift alignment tool.
With the EQ6, take care with the altitude bolts. Carefully take up the weight of the counterweight bar before adjusting those bolts.
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