Definitely the green bug. The CBR's fueling is pretty much spot on and there is literally no jerkiness at extremely low speeds and on/off throttle transition. I would recommend you to check your throttle freeplay and make sure you time your clutch and throttle transition. Extremely slow maneuvers coupled with engine lugging will result in jerky throttle transition. This is dangerous at times, the vehicle can stall and you may take a spill.
Good luck.
Cheers!
VJ