It sounds to me like you have great answers! I have so much to learn...
What is dry corn?
Dry corn means that it’s left on the stalk until the stalk dies down, then dried on the ear. So, flint corn, flour corn, dent corn, and popcorn.
Personally, I have stomach issues that act up if I eat sweet corn, so it’s been years since I grew any. This year I’m growing flour corn, and next year it’ll be flint corn. By alternating years I can keep the varieties from crossing.
Flint corn tastes best boiled, where flour corn tastes best baked. Dent corn has a little of both, so it tastes best if it’s both boiled AND baked, which is kind of annoying to do. But, most cornmeal that you find in the store is made from dent corn. Probably because it’s easy to grow. I think all feed corn hybrids are dents.