Flew the rig on a 48hour short film comp over the weekend for 1 scene. Had no issues doing the walk and talk.. but as soon as i ran back down the carpark to reset the shot and have a play at the same time.. there was the vibration.

Its so strange, the fact that it only seems to be there for 1-2 seconds and then becomes fine again.

Will post a video when i get a chance.