braveheart
My opinion...and I really wanted to like the Flash/Flash sz...sounds and feels awful. I could not find the center of the club face. I loved all the hype and adjustability but hit it indoors alongside the Cobra F9, TM M5/M6 and the Ping G400 max. The Cally was by far the worst. Never hit a good one, no matter what shaft I had in it. Sound was awful, everything felt like I was hitting it off the neck.
Winter was over and I hit it again at our outdoor demo. Sound was better outside but still didn't feel good. Numbers on Trackman were poor as well.
Give it a go though, tons of people seem to like it on other forums although I take some of their reviews with a grain of salt. They tend to never say anything bad about a club, just suck up to the mfg. so they don't get "kicked off" the prospective testers list.