Ih this case, size doesn’t matter .
It’s all about how the individual kiln, itself, fires. Top vs. side vs. top + side elements; hot spots; max rate of heating and cooling because of kiln size and construction, etc. I think you’ll just need to start playing and adjust if/when necessary.
I have a “small”, “medium”, and “large” kiln, and I pretty much use the same schedules for all three.
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