Not sure I saw the same line of comments, but the one I started with guessed at no weather proofing, which wasn’t a good start at truth. I feel I’m now committed so will take the normal fanboy choice of defending my choice to the death (errr … maybe not).

Too invested to change - oh yes: 16mm, 35mm, 50mm, 100mm macro - v. nice, and a cheapie zoom I never use as it has no AF/MF switch, and the aforementioned 600mm. I do wonder if I should have gone the zoom route rather than prime, but choosing “today’s lens” helps settle my mind in the right mode. So, a zoom is definitely an experiment.