photoman43 wrote:
I have that same lens, and my tripod foot fell off the first day I used the lens. Fortunately it fell on the bed and the lens was not damaged. The Wimberley replacement foot appears to be better than the one from really right stuff that I got. With the Nikon one, you have to keep it very tight and make sure your finger does not touch the release button on the foot.
IF, you keep the securing screw tight (not difficult), even if your finger does hit the release button, the foot WILL stay on.