Firstly none of Manfrotto plates fit this? Despite other reviews saying it does !
I was intending to use it with my FX6 ! Its too big for the FX6 and when you use the plate only and don't slide it onto the quick release you cannot put the camera on the ground because of the bar support on the front! I was also going to use it with my FX9 and there is too much of a gap at the rear and it wobbles!