Went and hit both the MX700 and the Burner 09 and ultimately went with the Burner. There just was something weird about the MX that I can't put my finger on. It was almost too muted when it came to feel compared to the Burner. I'm a TM guy anyway, so it could be a mental bias, but I was definitely hitting a little further with the Burner as well. The MX was nice, don't get me wrong, but all things being equal (price), the Burner seemed like a better fit for me.
And ET---maybe TitleistWI had titleist clubs previously...you can't change your username every time you get a new set of clubs, can you? :)