Twin Sons is a Turboshift with a different look on different base coats, what we are calling a zenishift.
Twin Sons is a rock/jazz/blue-green fusion — when used over white it is light blue with green and gold highlights, used over black it is green with blue and gold. It is blue in the bottle.
Zenishifts are Turboshifts that shift differently over different base colors. They appear almost as if they were two metallics in one bottle, with one color or the other dominating depending on what color base (black or white) they are sitting over.
Formulated for airbrush use, but may also be hand brushed.