OM,
No, I believe that your "toss-kick" shot series, especially if done consistently and smoothly and deadly quick from both sides, would be a good zonebreaker. Any lapse on the Central Zone D (or any zone D for that) matter, where the defenders fail to switch defense lanes correctly (either of the two center lanes) and actually open a "cone" to an undefended corner could be quite effective. In fact, its nature of "jumping" across the zone is almost exactly what a zonebreaking shot has to have, like a fake in a basketball game to draw more defenders and doing a cross-court pass to the open man on the other side. That or a good off-goal passing series.
Central Zone entails simple logical division of labor between the forward and goal, so they still have to have the discipline to maintain it. I believe Central Zone D is the easiest to demonstrate, show its philosophy, and to maintain. I've tested it time and time and again with noobs and rookies. It puts a simpler load on the goalkeeper, in fact stupid simpler, which is necessary for a beginner/rookie team with the weaker and least experienced player most logically in nets. And the opposing "toss-kick" backpin goalkeeper would still have to have a well practiced takeoff and release to jump the other side of the zone, just as any good under-rod tic tac (back and forth) zonebreaking goalkeeper shooters have.
But by then it's become a game .... again ..... with both sides trying to out-execute each other, with survival chances more even. Designed to shut down just about all those "cheap" quicksets, including banks and fakey off-goal passes that more experienced players will throw at 'em. It will no longer be the usual tsunami that runs over the weaker team. And that's a lot to have for a young and/or very inexperienced team. What more can one ask for? Pros and ProMaster teams can decide to all stay on the near or far wall, with the players' feet up in the air, either for a fake or "fuh style points", because they HAVE the skills and experience, anyway, to close off the center shooting lanes and the passing or banking lanes on the sides and make it work. For noobs, it's dance training with numbers on the floor, of course, and the motto is now:
Keep It Centered, Kid, And Stupidly Simple, Stoopid ! Or K.I.C.K.A.S.S.S., for short.