I have to disagree, I leave mine off 99% of the time. The bike handles MUCH nicer and easier with the trunk off and it's not so top heavy. Even on the freeway that damn trunk catches wind and moves the bike around unless you have a passenger back there.The XCT trunk is light and mounted low. A passenger is far more taxing than a trunk.
I've had my trunk on all but 1 day since I rode down to NC to pick it up. I can't tell it's back there until I put a 35 pack of water in it. Even then it's hardly noticeable.