Hi Fred, no I didn't rotate, I did stagger when I put them in, as I prepped the ribs I put them in the rib rack then put the racks in
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shelf 2 first, then 3, then 1, then 4, was about 8-10 minutes between racks - they seemed to get done at the same time. It was at a horse ranch for a wedding. Also did 80 lbs. of tri-tip and 24 spatchcocked chickens.
Did the tri-tip first, put in Cambro, then did ribs in one FE and chicken (2 loads) in the other FE. One of my FE's is named Martha, it's the FEC type, she's a steady performer, never a problem. The other is Jayne, the first model Cookshack came out with, kind of temperamental, doesn't like to be overloaded. I did the ribs in Jayne because Martha was doing a full load of chicken at a higher temp and Jayne doesn't like that.
I had a problem with the GFCI on their outlet, had to run 100' of extension cord to a non-GFCI outlet.
There were a lot of flies at first, but they let me use some horse fly spray, I sprayed it on the ground and the sides of the tent and there were no more flies. It was like magic. Here's a link to the kind it was
Repel Fly Spray I didn't pay for it, but it is expensive to buy.