I had my ECU flashed by Mr Ivan (http://www.ivansperformanceproducts.com/fz09.htm) during his holiday sale (10% off, so basically the shipping was free) and got it back last week. While the tank was propped up and it was still raining, I figured I may as well install the Brandon Smart line cruise control I've had for a while.
I finally got out for a test ride a couple hours ago. The flash can be described with one word - sweeeeet! "A" mode is no longer a jerk, but really smooth and a strong build from the start, I really like it. "A" and "STD" modes really do feel like there are real throttle cables all the way, like your wrists and the throttle bodies are more solidly connected.
The cruise control is excellent right out of the box, very impressive. This the first time I've had real cruise control on a bike, and I think my right upper limb is going to like it.