I Tried my sons GoPro mounted to the right hand Mirror stem ,But same thing Ward ,Shaky as . I've been checking the net for Anti vibration mount's .No luck yet & same as you mate works great on the helmet but don't like the angle as much as on the Mirror . You would think these Manufacturer's would incorporate Anti Shake that work's But they don't , not even in the Expensive GoPro ,Shit's Me .
If Wisdom Comes with Age , I'm one of the Smartest Blokes Here