Love WH2O but never thought of it as a "flow" pin. Yeah, you can get a few combos going but that's the same for pretty much every pin. I can shoot ramps and orbits all day on TZ but it's clearly not a flow game.

Stern ST is all flow in pretty much every mode. Only lock shots and mode starts stop the ball. Every mode requires you to shoot around the playfield and every shot comes back to a flipper. As long as you keep making shots, it's non-stop flow. Pretty fun to hit the left ramp, then the right, then the left orbit, and then multiple warp shots in a row. Even the vengeance magnet would fire the ball straight back to the flipper. Be cool to see that layout get recycled in a different kind of game that does not rely on playing out so many long modes.