For anyone following this and considering the use of iron skillets, save yourself some time and find used ones that have been properly cared for. Flea markets are prime sources.
I have two "sets", one at home and the other at the cottage. I admit to being highly partial toward them.
One suggestion: many of the newer skillets have a textured inner surface, it almost appears to be "as cast" in sand molds. It seems that might be a negative---mine are ground smooth as a baby's bottom
One other positive---cast iron distributes the heat over the entire surface of the pan very efficiently--thus reducing the chance of hot spots.
I have a gas stove at home and a conventional electric stove at the cottage.
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