gllama so far, I'm liking the feel of the Xcaliber Mystic 6 shaft in the z785. I also have quite a bit of yarn inside that head, so it's a nice muted thwack.
I'm planning on giving it a good test next week. I'm planning on playing 18, so I'll have a good chance to use it. I'll see about giving you a decent report from my rudimentary testing.