I bought some 124gr HST for my PX4 recently. I usually use hydrashok, and I have fired so many hundreds of rounds of the stuff over the years that I know it works well in my guns. As I cycle thru old carry ammo, I shoot it.
To switch to a new ammo would require me to buy more just to try out in my guns.
However, I forgot to bring JHP when I took my PX4 to the range for the first time. So, I bought some ammo at the range, and that was what they had. It worked fine. But, that is the only gun I am using it inf or now.