It's not exactly the point of this story, but I found a way to reduce the number of waste tires I generate.

Tires with 6/32" to 8/32" of tread are a scam. They get flats, and wear down to the legal minimum (in Texas) of 3/32" very quickly.

I buy tires with 19/32" of tread. No nail has yet managed to go through 19/32" of tread (or that much air gap) plus through the equivalent of a 10-ply design to puncture my tire, at least not until I wear them down to 6/33".

If we wanted puncture-proof, run-flat, handle-like-touring-tires, last-forever tites, we could have them. They are out there.