Follow up from my last post...
Due to initial vibration, I made some modifications to the suction mount - see attached photo. Used furniture foot felt pads and super glue to eliminate some moving parts.
Here is a video for comparison - both side-by-side and full screens views. Probably too long, but wanted to provide as much as possible to review.
Assessment: Definitely still getting a little vibration with the suction mount. However, not bad for a travel rig to take on vacation with rental cars.
Another note, the A119 Mini 2 used with suction mount seems to have different color balance than my other A119. Tones seem more "blue-ish" to me. Something I'll have to investigate.