I lose shelf space when I keep a clear line of sight from the peephole to the cones and the element behind them. (This refers to positioning the witness cones inside the kiln.)
You need to be able to see only one set of witness cones. You don't have to see them on every shelf.
Paragon Industries, L.P.,
2011 South Town East Blvd.
Mesquite, Texas 75149-1122
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