What tranny oil are you using, and what mods do you have on the bike?
I'm running an 07 EGC same as you. I run Spectro platinum 6 Speed in the tranny and it is smooth and much quieter than with the HD oils.
Also I am set up with rush 2" slip-ons, a K&N 1499 in the stock modified airbox, and the IED's from Nightrider.
I am experiencing none of the lunging or lugging that some have complained about. 6th gear is usable at 55 mph, and when you twist the throttle from there, it picks up quite nicely with no bucking or hesitation. On a recent trip I averaged 42mpg running 70-75mph.
After 10,000 mi. I am finding absolutely nothing to complain about. This is turning out to be probably the best running, most comfortable bike I've ever owned.
Unless I see some drastic changes in performance, I'm not planning on doing anything but ride.