Thanks for posting. I am still 50/50 between the Air 2 and Mini4. I do use a neckstrap (lanyard?), as you say it leaves your hands free if need be, so the extra weight of the Air 2 hopefully shouldn't be too much of an issue. Is the Air 2's screen okay for reflections? I currently have the Mini 2 and mostly see my own face!
You will always have problems with reflections on the screen, no matter what you use. All I can say is to find something that you might think will work and give it a shot. Weight is a big issue, so stay away from the plastic screen protector's and go with the fabric ones if possible. Just my opinion.