I've been using the 7D for 2 years with a diy handle. I find that the plastic cam caddies and opteka x-grip are floppy laterally when you have to swing your camera. I wouldn't suggest using any of the plastic options. I built this for $17, it's rock solid, I can use the screen very easily, access all of the side compartments, it's perfectly balanced and I can fit a small mic underneath it.