REAL WORLD, I think you will find very little difference between premium JHP rounds, or even stuff like WWB JHP. Like they said, the very worst thing that can happen is that one might fail to expand, and you will be left with.....a 230 gr hardball bullet. Not exactly a bad thing. Having said that, I think that you should fire the best, biggest, heaviest round from the longest barrel you can carry. (I only carry full-size autos.) I recently switched from Federal hydra-shoks to HSTs. The suckers consistently expand to almost one inch, and rarely separate from the jacket. While the real-world differences in performance might be small, I think that as pistols are inferior weapons in general, you should give yourself every advantage, even if it's slight. It adds up.