We shoot quite a bit of the stuff at work. No felon shootings, but a bunch of paper and pest/RKD work. You give up some velocity, but there are some gains.
Less recoil= faster recovery
Nobody's measuring, but we think its patterning slightly better.
The genuine LE reduced recoil fodder has likely been treated w/ a flash suppressant. There s a big difference in reduced light between sport/full power buck/slug and the genuine reduced recoil LE numbers in muzzle flash.
Less loss of night vision and you are not advertising your position or yourself.