I received a new Ioptron cube pro yesterday and was able to try it out with my new SV90T fpl53 Apo. My scope with clamshell, finder, 2" diagonal and 35mm Tv panoptic weighs in around 11.5# The published limit for the scope is 12#. Here is the scoop! I used it in less than ideal circumstances, it was windy around 15 to 25mph, but i had a decent wind break, my back yard fence. I extended the tripod legs to almost the maximum, mounted the 90t in the Vixen style dovetail holder with the one lock nut ( looks kind of scary) and then put the scope in the park position ( scope pointed up with the arrow on the mount pointed south) I turned on the mount and let the GPS do its work. The GPS locked in under 1 minute. I then did my 2 star alignment procedure and then told the mount to go to M42. In under 8 sconds the scope stopped in the vicinity of the nebula. I looked thru the eyepiece and the Orion nebula was not in the very center, very close. I then went to M82 and then back to M42 each time it was in the inner 2/3 portion of the eyepiece. By the way i was using a Celestron 26mm 50 degree silvertop at the time. I am happy with the mount overall. The only thing that i think would be a major improvement would be to use 1.5" tripod legs like the mini tower has, instead of the 1" legs that are used on the Cube Pro. The mount tracks very well. One negative is when switching from my 35mm Pan to something like the 26mm silver top it is pretty hard to tighten up the clutch brake enough to where the mount wont move and mess up the alignment when the weight difference in the eyepieces you might be using are so different. Thanks David
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