There is a guy on YouTube that shows how to tune the mount through the small screws on the sides for the RA and DEC axis. As per the video, both sides have to be equallty screwed (if I understood correctly), but mine are not. That is how I got the mount, but will try to tune it a bit so both sides are equal. He also mentioned whirling sound, withi is due to overtightening, which I hear...
So, after the disassemble, grease and re-assemble, now is the tune time. Wish me luck!

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