The last set of mods on my R turned into a jetting nightmare. Installed the dial-a-jet and just a little bit of tuning and it was perfect. I have nothing but good things to say about how it works on my R.
about the time the bike comes into the powerband it bogs and it runs better on choke and runs better at half throttle, full throttle bogs. And cold it doesnt run good it has to warm up to be decent.... i put the biggest jets i had in it and it ran 100% better but still isnt enought fuel