No titles yet, but 2 D1 final fours now with zone/press (championship game with UV as pkoopman). I’m confident I’ll get one eventually. I think it can be a successful defense for sure, with the right players and game plan. But very few try it, which is why you don’t see it in many final fours.
I use 45-50 set minutes per practice, which is comparable to what a lot of folks use at D1, I’m told. I use considerably less on press than offense or zone in a combo setup. My guys generally end up A- in offense and zone by the end of their junior years, and finish their senior season A to A+. With press, if they know it coming out of HS, they usually get to B- before we start conference play their sophomore season. Most will finish their senior year at B+/A- in press. Obviously some variance, if the player is exceptionally dumb/lazy, or smart/driven.
Adding the press definitely adds some turnovers IMO, though I don’t track it. Every time I’ve switched from straight zone to press/zone, it’s been noticeable. I don’t have any data for you, though, sorry. The extra turnover or 3 per game is worth giving up trying to max out every attribute category, or get every core to red by the end of the junior year. One of the key drawbacks to straight zone is that you’re always struggling in the possession game, with a disadvantage in both rebounds and turnovers. I like the flexibility of zone, though, and being able to switch between 2-3 and 3-2 - ideally, if I have the right personnel - and the ability to double team guys occasionally.
I also like the flexibility of running with 10 or even fewer, if I have to, which I would hate to try with straight press.