Hi Shugito,
All the 08's had this flat spot when the new DDFI 3 injection system was released.
It was the bane of my life as customers were always complaining and there was not a lot I could do as it was a fueling issue. Company were denying any problems, but we had many updated fuel maps coming through on digitech for some time, that I was updating every bike when it came in, so they new something was amiss
Anyway, make sure you have the latest map on your ECU, as it did seem to clear the problem for most, although it will change the use of the Fan, which will come on as you ride and go off under 15 mph then come on above that speed.
A dealer will be able to check this for you and update for free, if not, come to Black Bear and we will, although probably not you most ideal solution with the distance I'm sure.
If your Fan already does this, and dosen't come on after switch off ( another effect), then you already have the update and you may have to look elsewhere. EBR race Ecu or something?, I've heard good results from these. Is your Exhaust standard?, perhaps freer breathing system with 07 downpipes and K&N filter certainly improved things at the time.
Hope this helps.
Jon