China Gimbal Mounting Plate Replacement for DJI Flamewheel (F450)

Many people use this cheap so called china-gimbal for their DJI Flamewheel and I was always wondering how they mount this thing to the copter. So I decided to make a replacement for the original mounting plate that will fit to the groundboard of the F450. I think the F550 has the same holes for mounting but I'm not sure. I made long holes so that the position of the plate can be adjusted from front to back. I had several flights with this thing and till now I'm fully pleased.
If you use wing n