I think it's time for me to get some cling wrap, cover my fisheye, spray it with water & try shoot some riding... more experimentation like this needed!
yeah f/22 will turn just about any smallish light into a sunburst or star, but it also shows up every bit of dirt and dust on your lens and sensor as well. If I wanted to shoot at that kind of aperture right now I'd need to get my camera cleaned first, or spend way too much time dust spotting every single image...
Next time you're through Delta and want a coffee let me know, I'll show you this lens.........reacts in crazy ways to direct light....I'm sure a pro as yourself has some fancy words for the flare effects, but I experiment with it because I like the unique results I get...........