"It all my years in the business I have never met a major airline pilot that came straight from 135 only."
UPS, before the ANC domicle, would hire from a wide variety of backgrounds, to include corporate and 135 turbine. I think those guys had as good a chance as a 121 freight guy. Things changed with the ANC domicle, though, and they started really favoring over water as ANC is a junior base.
I don't see why a 135 guy years of G4 experience wouldn't equal a 121 RJ Capt with the same.