In addition to the above, and I hope I'm not opening a can of worms here, but fitting a slightly higher profile rear tyre - 240/55 instead of 240/50 - has improved a number things for me: handling, grip (more a brand thing than size but..), fuel economy, mileage, softer ride, looks and for me it puts the bike better in the power band when coming out of corners, although that depends a little on how you ride.
PLEASE don't turn this into a pro or anti Darkside discussion - it's about profile.