Nikon 70-200 VR sharpness workaround

Reader Mike P offers a valuable suggestion when using the Nikon 70-200VR (see article): attach the TC-14E II teleconverter for a 98-280mm f/4 zoom. He reports that at f/8 detail is sharp out to the corners on FX frame. I haven’t verified these findings, but it makes sense; with the teleconverter the “sweet spot” of the lens will be used.