I just got my NN5 and RD16 and even after reading the users guide and watching the tutorials, I'm unclear about something really basic: Mounting the camera plate on my 5D mkII. In the video tutorial, it looks like the little lip on the camera side of the plate is flush with the edge of the camera. When I screw it into my camera, it's a good 1/4+" away from the edge of the camera. Is this how it should be or do I need to change something?

Thanks in advance for any help with this.