The PDX load is pretty new, and I don't have any reports on actual shootings with it yet. Don't have them for 165 grain .45, either: it's an uncommon load.
When in doubt, look for the middle ground. 185 grain JHPs have always had a pretty decent reputation, and they honk the bullet's velocity up to significantly more than a 230's out of a short barrel. The CorBon 185 grain +P worked well in shootings, and so did the various standard pressure 185 grain JHP .45s, including Remington's after they redesigned their original JHP design for that weight and caliber.
Also worth looking at is Speer's Short Barrel .45 load, expressly designed to open up in shorter barrels. Fact is, I wouldn't worry about shorter barrel performance in high-tech, street-proven 230 grain .45 ACP loads like the Winchester Ranger-T and the Federal HST.