If I'm on the trail, I use either the Pegasus if I'm going easy, or Zoom Fly if I'm going moderate. I've been doing all of my easy stuff on the road in Epic React lately. As mentioned, the upper on the Epic React is a bit snug and a bit sloppy, but I've gotten used to it, plus I'm going easy in them so it's not a big deal, the cushioning is too good and outweighs the bad upper. Been doing 60 minute MP tempo runs twice a week and 2.5 hour long runs in Vaporfly - that's made a big difference for me!!
Edit: By "trail", I'm talking like rail-trail type surface, nothing technical. Crushed limestone basically.