I've always done this with my long lenses but I also put a small lock washer on each screw otherwise they become loose over time. Also, the length of the plate that I use depends on the camera/lens combo. That is, I want the combo to balance on my gimbal/tripod rig so that there's no movement when I let go. I get a plate long enough to be able to use it (without adjusting the plate on the lens) with and without my teleconverters. Your zoom lens will have variable balance points depending on the focal length that you use. Best wishes with your new rig!