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Is it true that the self-supporting cone is slightly over-fired if the tip bends and touches the shelf?

The self-supporting cone, when fired to maturity, bends downward until the tip is even with the top of the base. If the self-supporting cone tip touches the kiln shelf, the cone is slightly over-fired.

On the other hand, the standard large cone, when fired to maturity, bends straight down toward the kiln shelf. This is called the 6 o'clock position. It is okay if the tip of the standard cone touches the kiln shelf.

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