How should I prep for a color change over existing good paint?

Color match looks pretty dang good! The runs will sand out of the clear pretty easy. There's good how to videos on You Tube. A lot of people use glazing putty to cover them, which keeps the sanding block smooth and flat while sanding them out. The moment the putty disappears, switch to a much finer sandpaper. Then cut and buff the whole shebang. You did a dang good job for your first time. If you don't get a little run every now and then....you ain't tryin hard enough...lol.

:thumbsup: