My bike (+- 800km) also has problems shifting down.
Mostly (or only) when stopping at a red light and still being in for example 3rd gear and then trying to go down to 1.
Sure you just have to learn to live with this?
I think it's really annoying!
When I see the red light from far enough there's no problem (I can shift down one by one breaking on the engine), but how often does it actually happen you have to stop more suddenly? A lot!
It's not a nice feeling having to hurry up with cars behind you when the lights are turning green (you have to loosen the clutch or turn the gas a little bit to get to 1 eventually).
I have to go to my dealer soon for my first maintenance (1000km) and will ask him...