Just found this green Advantage Select card from Coushatta Casino in Kinder, LA where "Advantage Select" is in green with no silver printing. Very similar to the 2nd issue red Advantage card with "Advantage" in black and no silver printing. So it appears the red cards without the silver printing were in deed not a "mistake" and were actually printed that way! In fact, I just found a few more blank red cards with the black Advantage.