If you are switching to reserve at that mileage, it sounds about right to me. I think I have about a gallon of gas for reserve. Gas mileage varies greatly dependent on many factors.

BA has Freak, 160mains, 44pilots, air mix3 1/2 to 4 turns, BUBS dresser dogs. Never had more fun on any bike - 2nd bike 2008 RIIIT