What lenses\teleconverters are you using? I'm keeping my A7RIV as a backup but will be switching to a A7RV as my main. I use the 200-600 with 1.4x tele. Specs are better with the V, and I am hopping it will handle my 2x since shooting at F13. Inflight shots are nice, but I find myself shooting mainly hummingbirds sitting/stretching. Grip is great to have. The new screen on the V will be great as I'm finding myself bending my neck too much when shooting portrait; health benefit and utility worth price. Until I try out the V, I can't say. Reviews I have seen say the autofocus is great, so may be best options unless you want to pay more to get the A1. My suggestion, unless you are in a hurry, wait till you can rent/burrow the V and IV together. Try them out doing what you typically do and see how they compare for you. Do a cost/benefit analysis and choose accordingly. Feel free to ask any question you may have, and I do my best to answer them. Best of luck in your photography.
