The twin 650's of the Ninja or Suzukis will run like a raped ape compared to what you have now. There is a reason why so many riders of all sizes and skill levels own them, and they are many times ridden 2 up and fully loaded with gear. Unless you start taking test rides or just decide to take a chance and pull the trigger on something else, you are just wasting time reading up and listening to opinions. Decide for yourself, not like you are buying a house.......it's just a damn bike.