For the first 1,000 miles, I had a shift problem from N to 1st, and 2nd to N. After the first 1,000 miles I noticed a serious improvement. I also found that unlike all of the other bikes that I am accustomed to, this one benefits from ALWAYS shifting all the way down to 1st, and then up to neutral at stops.
A riding buddy of mine had the same problem, but it had not improved. I pulled his clutch pack, and his plates were glazed. As it turns out, he is one of those people that really ride their clutch (extended slipping and dragging).
It was a major DRAG fumbling around to find 1st like a new rider, when the light turned green! Major embarrassment, especially when you are on a 'Busa.