Well played my first 9 with the new Z-Star 9° head (replacing the 10.5). Set shaft to Neutral and put 11g Rear and 7g Heel (all done to reduce launch and back spin numbers) While I don't have anyway to tell what the #s now are the results speak for themselves. Used on 7 holes and hit every fairway. Avg'd 235 total driving distance and even busted one 253 yards! Played using the old (not dual dimple) B330-RX that I used to play with. Ball flight was definitely lower and no ballooning effect. I saw only 1 fade and either had a nice middle line or a soft draw to the flight. I'm sure I'll be testing this config out some more!
Amazing what knowing what the numbers are can help change things to the better!
Glad it's working out for you so far. I've always found the Z-Star to be a great combination of distance and forgiveness.
If you want a lower flight with less backspin you actually want the 11g in the heel and the 7g in the back. (More weight in the back = higher flight/more backspin/less sidespin, more weight in the front is the opposite.)