Regular is mirror foil, the Plus is a form of etched foil that was only ever really used in that one season. All the inserts that have this format in multiple sports use the same technology. It looks a lot different in hand, not so much in scans.
VERY slow trading due to health problems. Not transferrable so safe to trade with, just moving is painful and can't always access the cards.
Cardboard History My COMC
New Collection Website: Cardboard History Gallery (Still under construction)
Tips on how to make your scans look like the card does in hand (No more washed out, fuzzy scans!):