Not heard anybody mention it before.. IMO, makes no difference if its 2 or 4. They are only there to stop the gimbal detaching in a crash ( or stop it pulling the rubber mounts loose on a hard landing ). Under normal circumstances they dont do anything.
Hi , Jack
If you are reffering to the plastic catcher.It ought to be two installed on the gimbal . 2 or 4 installed will not make big difference . But better go out for a shot and check the video .
I'm just mostly suspicious that my drone was bricked and returned. Hopefully my new one next week looks normal (and works!). I'm sure I'll be posting my first photos once I get them!