Isn't a lot of it arm speed dependent? Slowplastic, I think you're in that category of players that can throw 400' pretty reliably, am I right? A lot of us are a little below that. I use lots of hyzers, but I'm way more likely to do some kind of low hyzer with a stable/overstable disc like a Teebird (or even Surge, Undertaker, Buzzz, KC Aviar) than a spike hyzer with a Zone or Firebird. Maybe I just haven't practiced enough, but I don't feel like I have the arm speed to utilize those shots.
I remember watching a couple rounds in a local tournament here (the
2015 Norman Pro/Am, that link is to Jomez coverage of a round with Sexton and McBeth) and being extremely impressed with some of the spike hyzers McBeth, Sexton, and other pros threw to get out of trouble. I could probably work on those shots and get a little better, but I think they become way more useful and more accurate when you can throw about a 100' farther than I can.