I should have been more clear. My lenses shouldn't have issues as they are all fast enough even with a teleconverter. Their minimum maximum aperture is f/5.6 with a tele.
My thought was that there are three scenarios; one where the aperture is <= f/5.6, one where the the aperture is > f/5.6 but < f/8.0, and one where the aperture is >= f/8. That second window is very small and you would have to be on your toes to know your lens is in that range, and to have a visualization in your mind as to the sensors that are active in that case.
Off the top of my head though, I cannot think of any lens with a minimum aperture between f/5.6 and f/8. It would have to be a non-constant aperture zoom, perhaps with a tele? It would be very tricky to be shooting and know that your minimum aperture just went from below f/5.6 to just above it!
Scott Chapin Powder Springs, GA, USA Nikonians Team Member