I find my PPS to be a sweet shooter the way it comes from the factory. Since it is a CCW pistol and not a range pistol I am not going to use a third party product in my PPS that could jeopardize reliability.
Well just pulled the trigger (pun intended) on buying a Galloway Precision. The stock sometimes had trouble compressing after pulling out. For the most part it was a little work to get it to compress. Well after the last cleaning it took like 5 minutes of fiddling to compress. I don't know why it was jammed up but that was enough for me.