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It seemd to me that the bulk of the PJ's were at the venues--the wall at the back of the main venue, and double wall at the relix stage,
but then just a few scattered in the camping areas. While obviously a large % of the crowd is at the main stage in the late
afternoon/night, the same mass crowd is in the living areas from dawn to early afternoon.

I didn't see the Relix area walls being used much; although centrally located on the map, too long a hike from where most people were,
at one time or another.

They were great for me at VIP hill when ours where shut down in the mornings. Each day. And if you can time these things, a wise move is
to stop in there on the way to and from the main venue.

BTW the main venue wall o' pjs were not that crowded Saturday and Sunday nights, but were slammed Friday night.