I'm already itching for that extra low-end torque I've read about by removing the secondary flies. My plan is to get a PCV eventually, but having just bought the bike, I can't justify buying one right now. I'm just curious if others have removed flies on an otherwise stock bike WITHOUT a fuel management add-on and what your results have been.
Also, has anyone ever modified the flies and re-installed them? A popular mod that I did to my previous bike (FZ1) was to remove them, cut them to a smaller diameter, and reinstall them. There are even a couple shops who make and sell smaller diameter flies for that bike.