I think I might have ADHD or something at work.
Remind me not to get sick in the tri-state area.
I wonder if the minimum length is more a space requirement than a length requirement. More length usually means more space for parking, tents, booths, VIP areas, and spectators. If courses under 7000 yards can host a US Open while producing final scores around even par (thanks to a butchered, tricked-up Mike Davis setup), I would think a normal Tour event could work from as little as 6700 or so if you're willing to get some low scores and loud cheers going. But most 6700 yard courses would have far less space for infrastructure and spectators, which would make them much more difficult logistically for hosting an event.