I have a 08 non-Exec 650 and I have researched this forum and can not find anyone who has removed their Givi windshield, drilled new holes and re-installed it to make it higher. Has anyone done this? I did it on my last bike (large cruiser) and it worked fine. Like a lot of other riders, there is too much buffering and noise on my helmet. This is the first time I couldn't find an answer to a problem on this site. It seems like EVERYTHING is covered in the threads, but not this question.
Also, on another note, I just finished a four day trip around the Olympic Peninsula and couldn't be more happy with my scooter. I averaged 53 MPG for the trip which included a trip up Hurricane Ridge in the Olympic National Park in Washington state, where I kept up with the fastest bike in our group. Twice I got 60 MPG. I tell other riders that the Burgman is the best kept secret around.