You can't have your cake and cruise at low rev's too. Any gain it bottom end will be felt as a loss (more rpm at a given speed) at the top.
Just remember that a single tooth change on the smaller, front sprocket will make a bigger difference than a single tooth on the rear. Front sprockets are considerably cheaper to swap out and don't require removing the rear wheel entirely. You can muck around with ratios for $20 a sprocket.
I personally run one tooth smaller on the front and stock rear because I mostly ride around the city and like the more punchy feel off the lights. (and sometimes like to light up the back wheel when it's wet) but do find she sings a little sharp on the highway at 110kmph. Interestingly it hasn't significantly increased my fuel consumption even on long h'way runs.
Sent from my iPhone using Motorcycle.com App