Holy crap that was uncalled for…althought I did chuckle
I am pretty sure my mount doesn’t shake because I am a way smoother driver than you are. Or it could be because my car is going 30mph slower than yours. I do have it extended quite a ways. Do you have the safety strap putting some tension on the camera to keep it more stable?
I just use Windows Movie Maker for my vids, not sure if it can handle that format or not.