Yesterday I took my F3 on its most spirited ride yet - goes in for its first service tomorrow.
Anyhow, I was getting a a fair bit of chatter /lock up as I was about to throw it over. I think is is because it is such a high reving motor that I change down much further up the rev range than say on my F4 where I rarely get chatter - also you can be far more aggressive on downshifts with the F3 which is no doubt another contributing factor.
My F3 is the model without the quickshifter & I was thinking about getting the quickshifter as an after option BUT the more I ride it, the more I think a slipper clutch would be a better way to spend the money.
I'll ride it some more before making a decision on which way to go, wish I could afford BOTH