I just got a TC-17EII teleconverter. The manual has a list of compatible lenses. My 70-200 f2.8 AF-S VR2 is on the list. My other lenses are not. I understand that: if used with an incompatible lens, the elements of the TC and the lens could touch and damage both screwdrive lenses (AF, not AF-S) may not AF non-CPU lenses (AI, I don't have any of these) won't report focal length correctly To confirm my understanding, I should not use the TC with any of my shorter lenses, such as 16-36 f4 AF-S, 24-70 f2.8 AF-S, 50 f1.4 AF-S G, etc., right? Besides, there is no point in using a TC with such lenses. What about my screwdrive 105 f2.8 AF micro? Conceivably that would be a useful combo. Will it work? Is it safe?