Just wanted to update everyone who replied earlier and tried to help. The mount went back to Ioptron and I never got any satisfactory answers. You know, it's not the mount, it must be your site; not the mount, it must be your pier; it's not the mount, it must be your tripod. Anyone see a pattern?
Moving from pier to tripod was the big tell; there should have been some difference, but the severe RA wobble remained. At some point before I sent the mount back, Ioptron offered me a worksheet on how to tighten up on the RA worm gear bearing seats, which I did not try as opening up hardware on a new mount didn't seem kosher to me, plus any damage would then be my fault. The fact there is a worksheet would indicate they have seen this issue before and tried to come up with a fix. The link to these instructions now has seemed to have disappeared from their website.
After working on the mount, they never said they found the issue reported, told me they adjusted and replaced components, and then never said the issue was fixed. They just wanted me to take it back and try again. After refusing they tried to jam it back on me, so I asked for a refund, which was denied. Eventually I got my money back by using the consumer protections on my credit card, and not from any direct cooperation from Ioptron. I just decided to cut my losses while I could.
You know I really wanted this mount to work as I liked the features, but frankly their tech support was unfriendly and illusive, in my opinion. I never got anybody understandable on the phone, and had to email back and forth on the details. Obviously I was not the first to report the RA wobble, and I really don't know if they have a fix for it. Something was unsecure inside the mount causing oscillations in the one direction. I was hoping for a fix, as it seems others here are using the CEM60 without this issue. But tech service is part of ownership, and I had no sense that the problem would ever be resolved.
So anyway, I have used the refund money to buy a Losmandy G11G, which I have set up inside the house for now, waiting for better weather. But my Celestron 925 EdgeHD now shows no sign of uncontrolled oscillations, gyrations, or other unwanted movement. This mount I think I can work with. But several months and other money was wasted trying to turn bad into good, which I won't ever recover. Others had reported vibration problems a few years ago, and my experience was identical. Hope Ioptron tightens up on whatever it is, but I won't be using them again.
Again thanks for the support.
Edited by adastranova, 18 February 2018 - 01:26 AM.