The canopy was scuffed down with a scouring pad and paint thinner. The windows were taped off and the practice began. I played around with the various fluid and air pressure adjustments until a recipe was found that worked. That experience was worth the extra effort, it increased my confidence and reduced the anxiety for the upcoming Vespa spray. I highly recommend this process of practicing on something you have before going live and spraying your scooter.
We are having a nice stretch of weather starting in a few days. I decided to spray the Vespa outdoors instead of Mickey Mousing a garage spray booth. It'll be easier for me to do a shade tree paint shop outdoors. I had nice results outdoors with the primer coat.
That's it for now, in a few days the spraying will commence.