I just got done trying on the Falcon CS (90 flex) and I think I've found my next boot. The shop I'm dealing with doesn't sell the CS Pro (120 flex). The bootfitter, and store manager, thinks the CS would be a great boot for me and that the extra stiffness of the 120 isn't needed.
I weigh 165 pounds, strong skier, 40+ days yearly, 5'9"
The ticklers are that this shop doesn't sell the CS Pro (so there may be an inherent bias to the CS) and I've learned that flexing a boot in the shop isn't a great indicator of on-snow performance.
The other boot which fit well is the Nordica Supercharger although I had some hot spots over the instep.
I'd love to hear from the boot experts as to whether they think the CS is a good choice (as opposed to the CS Pro or Supercharger).