Either I am way late to the party and never thought about this, but while doing a lot of drills and having 5k rounds through my M9A3 already since December, I picked up a little trick. With my grip while firing the pistol, my strong hand (right handed) has the tip of middle finger just above the magazine release button.
Instead of raising the pistol up and at an angle in my workspace, dropping the mag via my thumb, reloading and then reacquiring a correct grip, on the M9A3 I can easily drop the mag with my strong hand middle finger, reload while having my grip unmoved and then go right back to it. On something like the FAST drill, it shaves a second off my time on average.
Anyone else do this? Is this common and I just never saw it?
BTW have never been a Beretta guy prior to the M9A3 and absolutely love it. It's taken over as my favorite go-to handgun and loves shooting the Winchester NATO spec 124g ammunition.