This may be a stupid question. When i tune the motors, Pan, Roll, Tilt, I dial them until they oscillate then dial them back down until they stop. This is after a perfect balance. When i hold the rig wide, with the side handles its great. When i then grab the top handle it shakes like crazy. While holding the top handle i fine tune the motors to stop the shake but then the motors don't seem strong enough to remove a slight horizon shift. Any other explanation why that might be happening?