I don't know why folks seem to have trouble reading the original post.
Routine fly ball, no one on. That eliminates any need to do running, diving and setting up to hit the relay or cut.
We'll just have to agree to disagree on this one. I can state not only from observation, but also from personal experience that the second hand can help. Does it every time? No, but it does sometimes. And if it prevents even one error it is worth it.
Midlo, you are discounting the advantage of the additional support and stability added to the glove. And the bare hand can react fast enough to help trap from the outside. Why on earth would anyone even discuss trying to put the bare hand into the glove?
I'll take what the old pros did over what the new ones do. I see way too many stupid errors these days.
I will not change what I teach, as I remain completely unconvinced of the merits of a one handed catch. I have yet to see a single argument that shows - in the scenario posed by the original poster - that there is any advantage at all to the one handed catch.
Later y'all.