I have ridden without the glass for the last 6 years, including a 10,100 mile trip in July of '09.

September 2009 I rode across country WITH the windshield on and between the reduced fatigue, noise and less pain-from-the-rain I'm a bit addicted to riding with the glass now.

I turned 48 last summer...I guess I'm an old man now!

 

When I was 21 I rode from NH out to Sturgis and back for bike week without a windshield. To this day I will never use a windshield.

 

I could put up with getting hit with bugs, sand and pebbles on my old Heritage when I took the windshield off. The thing that would really start bothering me on a multiple day trip without a windshield is the front of my shoulders. It takes a bit more muscle to hang on with the windshield off and thats what bothered me the most. (And the rain, of course!)