This thread has huge potential; huge, I tell ya.
OP, just buy that puppy (don't listen to the naysayers on here), all 7.5 lbs of it, slap some Albatross bars on it, and continue routinely riding your 16 to 100 miles/day and you will be flying. I'll bet your 'average speed' gets up near 22/23 mph within a week. Even higher with a few choice upgrades.
This is Bike Forums; anything is possible.