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Gary, I am suprised you have gone from an EQ6 to a Vixen GPD2, as I am considering going the other way.
I have an old SPDX - a structurally similar mounting for my 130mm F8 refractor and though I thought it Ok when new, the mount struggles now, with the motors not driving properly. I only do visual obs so I am not looking at tracking errors, just good performance in all conditions, not just still air. The scope + finder weighs in at 24lb. I have 18lbs of cwt.
I thought as the EQ6 is a bigger mount with ball+roller bearings rather than plastic bushings it would be a lot better than the Vixen DX models.
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