I'm surprised no one has said this yet, but the definitive way to determine if you are in a 51% location is by looking at the bottom of the TABC permit
if it says "sign=blue" then you are clear to carry
if it says "sign=red" then TABC has determined the location derives 51% or more of its revenue by alcohol sales.
that is the easiest way i know of to determine that
CHL class 02 Mar 2008
mailed packet (with cashiers check) 03 Mar 2008
Recieved by DPS 10 Mar 2008
PIN mailed to me 25 Mar 2008
DPS Website- "Application Completed - license issued or certificate active"
Plastic in hand 20 Jun 2008
103 days