Ispcapt, I always enjoy reading your posts regarding your experiences with the ISP.
In the last two decades of the 20th century, the Federal 9BPLE, a +P+ loading of their 115 grain JHP, was the best load for defense. It had an advertised velocity of 1300 fps and with a 4 inch barreled pistol, it usually made right around 1300 fps. At that velocity, those bullets would expand in a reliable fashion. The standard velocity load, 9BP, exited the muzzle at 1150 fps and it's expansion was not reliable. Those older JHP bullets really needed velocity in order to perform well.
In the 21st century, the Federal HST, Remington Golden Saber, and Speer Gold Dot bullets do not need nearly as much velocity in order to have reliable expansion. I still rely upon my old S&W 6946, thankfully I am not having to feed it +P or +P+ ammo, but with standard pressure 147 grain Federal HST ammo. With this ammo it is accurate, reliable, and the bullets should perform well if ever necessary.