I have put a stetsbar on my Gibson CS 356. It's easy to fit - took about 10 mins.
I like it, it feels a little strange at first (very light to the touch) tuning on the guitar is fine (I also used big bends nut sauce).
Thanks for the reply. That's good to hear. I am already a Big Bends user-it works really well. So the sensitivity of the bar takes a little getting used to then?