I seem to have limited tilt down with my Vision camera. Latest firmwares installed. I open the andriod app and see the gimbal level marker centre. Press down and it only pans the camera down marginally. Press up, and the camera max's out hittintg the top of the mount at the point the app shows camera marker centre. I have seen Youtube clips of the Vision camera pointing almost straight down. I had a look at the assistant software for gimbal settings and I cannot seem to get the same steep tilt. Any ideas?