Sure…it is common…but to be fair Steve doesn’t have one and there are a bunch of comparisons of the 500PF and the 200-500 around including both AF speed, features, and IQ…and he was up front about not including the latter. Your point about all the other comparisons being skipped as well based on other comparisons is valid…but he can only do what he can do. And…despite the 200-500 being pretty good optically…it’s limitations and issues are pretty well documented…but if he doesn’t have one or one he could have easily borrowed I’m not sure not including it is a big problem. Everyone knows by now that the Z lenses are pretty much across the board better and lighter than their F counterparts and why…larger throat, closer flange distance, and better optical design software than was available 10 years back when it was designed and the Z lenses maybe 4 years back when design started. But as he said…it came down to what he had and I think he said in the video he would have included it if he had one…and I, like probably more than half of Z body owners although I’ve not seen any statistics on it…have moved entirely to Z lenses because they’re just better. I know budget is part of the issue on keeping older glass as well as shapers does the output go and shooting style…but the continuing short supply of Z lenses tells me people are buying them.Its not about comparing to see which one you want. Its about comparing the new lens to a known quantity..... the 200-500 is EXTREMELY popular in that price range and provides a good baseline for understanding the 180-600s capabilities.