I had a lot of issues with my CGX as well. I ended up stripping it down and relube and rebuild.
I also readjusted the RA worm mesh to quite tight (no play) and it seemed to work. I will do the Dec worm mesh adjustment soon.
What I noticed in my mount are the sub optimal bearings in RA, which explained the stiction but my RA worm mesh adjustment made a difference. Dec bearings had enough free play in them.
If you are used to pulling apart a CGEM mount, then it might be worth your while to give it a go. (Usual caveats apply).
Good luck.
Bo
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