So the Shield slides are able to pretty much able to run trouble free with possibility a few exceptions. Now I'm off to search for a slide! Thanks for the input.I've got a couple Shield 2.0 4" OR slides on Shield Plus frames. Shot both a good bit. Zero issues.
I've also run (not much, yet) a couple 1.0 Shield slides on the Shield Plus frames.
I don't recall running the 2.0 4" slide on a 1.0 Shield frame though.