There are two variations of the purple 4th issue Club Paradise Preferred cards from the Atlantis Casino in Reno, NV that have always been documented by the position of the end of the first line of text vs the NV in the PPC line above the mag stripe ...BUT... there's actually a much easier way to tell the differences between these two cards. I'm not sure why no one every noticed but the web address at the bottom of the cards are different sizes. The web address is 33mm wide on one card (the one with t in insert below the NV) and 31mm wide on the other (the one with t in insert left of NV). I've updated the guides with the new information so hopefully that makes things easier.