That mount will serve you well. You don't need to jiggle it. Lay a straightedge east-west using a compass and line up the two tripod legs along it so it is pointing true south within a few degrees, Then use the azimuth bolts for fine adjustment. As per the spec you have +/- 9 degrees of adjustment using the bolts.
For astrophotography you'll probably want to use a more accurate method for polar alignment than the polar scope. Using the bolts you should be able to get within a few arc-minutes.
|