Was very excited when the handle was delivered. Then it went on vacation with a new MKIII and the handle. On the first day after about 1/2 hour, the camera went out at once, or ever was made. After much debugging I realized that it was the battery compartment. The battery compartment has approximately 1mm game and slips easily out. However, since sufficient to just disconnect the camera.
Unfortunately, the handle goes back after the holiday.