"Unique Set List".
My guess is different sets but a very limited catalogue.
Also, no word if Kreutzmann or Lane. I'm going to guess Lane.
One GOOD thing is tickets aren't transferable. Puts a big kibosh on scalpers trying to buy (and then sell) tickets but the negative aspect will be when assholes (like me) can't make up their minds and buy tickets to multiple shows and then not attend some/all that they bought tickets for.