I found that the top edge of my stock windshield was right in my line of sight and I either had to stretch my neck and/or sit up straighter to look over it or slouch down a lot to look thru it. Was a real PITA so I decided to cut it down 2 inches.
Here's a "blow-by-blow" pics for anyone interested in the process.
http://s393.photobucket.com/albums/pp16/SilvrT/2003%20Gold%20Wing/Cutting%20Down%20the%20Windshield/
You can also refer to this thread for additional info...
http://www.venturerider.org/forum/showthread.php?t=1063