Found there are two variations of the 6th issue slot cards listed from Wind Creek Casino in Altmore, AL. The 6th issue cards originaly keyed on the last line of text in the reverse paragraph starting with "Hospitality..." but there are actually two variations of those cards. On most cards the 2nd line of text in the reverse paragraph starts with "Wind Creek..." but there are some cards where the 2nd line starts with "Wetumpka.." like the following 7th issue cards from plicards. So far I've found the Escape and Chance levels in the new found variation.
Here's scans of the common front followed by the two variations of the back.