I have a Springfield Loaded Stainless in my gun closet that has been working 100% reliable with everything from 230gr. ball ammo to Magtech Gold hollowpoints so far. Except for a new set of grips and an extended slide release, it's bone stock, never seen the hand of a gunsmith.
Oh, and I replaced the two-piece full-length guide rod with the old-style setup, but that was just a personal preference and had nothing to do with functionality. (I just don't like needing a tool to field-strip a pistol.)