I am not a fan of Sterns flipper system. A single coil winding that is "pulsed" when in hold mode creates a lot more issues than the pennies saved by doing it this way saves I believe.
But what would I know.......
if you dislike the operator then hold the flipper button in for a few minutes on a new stern. 9 times out of 10 it will kill the mosfet and blow the flipper fuse.
Those guys at PAPA must be repairing their flippers all the time. Most players there tend to hold several balls on one flipper for minutes on end. Not my style of play though, I like to bash the balls around and not trap them forever.