No problems here, I think you will just need to ride the bike and get used to the FBW...... it reacts differently then a normally controlled bike... There is some limiting of the power in the lower speed range from what I can tell so far.
If you are babying it around during break in you will notice this more. I personally don't think there is an issue with mine, but in the lower speeds you can tell it's watching out for you.
Open it up and drive it normally and I have nothing but great things to say about it.
This new system will likely have some bugs to work out, but those of you saying the 03 has more bottom end are not operating the bike properly... lol Keep in mind that this bike is computer controlled and limited in the lower range. This helps make this bike one of the smoothest bikes I have ridden.
Time will tell for sure, but these are my opinions from riding mine.