Thanks, I had to scratch my head a bit when it came time to start leveling. It's hard because if you change the height of one, it changes everything else. I had to find the highest stand, get it leveled, then raise the rest up to it's level while keeping them plumb and square. I think the most one was raised was 1/4-3/8s" but they were all off a little bit.
I can roll that pipe over any two of the stands now and it stays flat on the tops of them all the way across.
The hardest part might have been balancing that level on the round pipe for the photo opps though.