I still feel like the flippers are on/off. I will test more today, but with the new Sterns I was accidentally live catching all throughout play. Too often, really.
You can see for yourself by tapping the flipper button rapidly and you'll notice that the flippers can be flipped again before they return to their resting position.
I can confirm that all tables on Stern Pinball Arcade do indeed have flipper physics 3.0 as I have personally performed live catches on all 10 available tables.