I've gone back-and-forth between the OEM windshield and my PUIG 5999 several times, and it's ALWAYS been a PITA! You end up needing another pair of hands (w/ REALLY long fingers!) to hold all the little bits that try to fall out once you've removed the four bolts, and two 'adjuster' knobs.
As I was doing it again yesterday, I decided to look into my SERVICE MANUAL (for a change...
...) to see what Kawi says to do. SAME thing I've been doing, so I started in on the job. Removed BOTH 'adjuster' knobs, started on the bolts, then a thought 'hit' me - what if I put a nut onto the bolts that the 'adjuster' knobs screw onto...?
I finger-tightened two, removed the four screws and VOILA! - NOTHING fell onto the floor! Changing windscreens went from a chore, to a FIVE minute pleasure. Here's a pic of the windscreen-mounts w/ the two nuts replacing the 'adjuster' knobs.
BTW - look CLOSELY at the washer in the first pic. It's SUPPOSED to be a "spring" washer OEM, but mine came w/ just a flat-washer, so I went to a bolt supply and got a proper "spring" washer, and installed it.
NOW I'm NOT looking all over my shop floor for pieces like that when they fell down removing my screens "by the book"!