Thank you txbanditrydr. I was able to take off the Givi, put on the Zero Gravity, take off the Zero Gravity, put on the Gustafson, take off the Gustafson, and put the Givi back on all within 90 minutes. I took the bike for a ride in between each swap to check the wind effects. Turns out the best of all is the Givi. I am a pro now at switching windshileds.
Thanks also to pmackie for the link. Those pictures would have helped me if I saw them before I started.
The combination of the pictures and step-by-step should allow anyone with the right tools the ability to do it on their own.
Thank you.