Connie can drink some gas if you let her. I just moved to a different house 10 miles from work, before this, I was only 2.5 miles away. Before I moved, during the week, I would be lucky to get 30 mpg. I constantly found myself ripping around town. Dash to work, dash out to lunch, go home. Now I find I have been ridding a little saner, and I am getting about 35 to 36 during the week. Short trip driving was killing my mileage just like a car does. As for distance, I used to get only about 36 mpg. Again, it was my fault. After making a concious effort, I could get 41 to 42 mpg when I wanted to. Coming back from Myrtle Beach this summer, following the families u-haul truck back home, I got 45.5 with only me on the bike and no top box. When my wife and I go out for a day long ride (2-up) I usually get about 41 to 42 mpg consistantly.
It's all in the wrist most likely. But of course it could be mechanical too.