See my previous response - the BEST money I have spent.
http://www.600riders.com/forum/track-tech-riding-techniques/31819-off-throttle-responce-07-fz6-9.html
After buying a 2007 FZ6 and putting up with the "glitchy" throttle I finally bit the bullet and bought a Dynojet Power Commander III USB from KneeDraggers.com for $269.95. The problem is GONE. Stock bike with stock map. Pulls clean right to redline. Before I was having to keep the RPM above...