I like this PTZ.. HikVision - DS-2DF8C260I5XG-ELW 1/1.2" progressive scan CMOS @ 2mp.

[tech101]

The stutter looks like a physical issue with the motor or other mechanical issue.

Yeah, the bolts are tight. It feels to me like the wobble is something internal, possibly a mechanical issue as you mentioned.

 

[bigredfish]

Yeah almost like they forgot some rubber stop doodaa (technical term) that stabilizes the gear or shaft on the turning mechanism.