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Dave I have the 16" goto SW version and it's setup as a roll out roll in scope.The 12" would be about as large as you would want for set up pull down.The alignment is pretty good with 2star.Ihave a battery pack sitting on the swivel base to avoid chord wrap.Balance is important with my scope and I have tightened the alt az clutch bolt.I don,t think this will bea problem with the smaller scope however if using a heavy eyepiece I,d balance it at the rear with a counterweight.With these SWs you can also slew to an object then manually move the scope around the area and not lose alignment .Remember these come with a 12 month warranty so use it heaps at the start to see if there are any bugs.Good luck with your purchase .
Regards Derek
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