New rotors at 36K

And a fine job you did, too!

Your mechanical skills must be near zero and your knowledge gleaned entirely from the internet.
They “look” flat to you? From that pic? Wow. Talk about a scientific approach.

A blind man can plainly see where the cutting bit had brushed one side of the rotor due to warpage. The center rotor in the bottom row is not as noticeable due to poor picture quality but it’s there.

For what it’s worth I’ve tested, measured, and machined more rotors than I can remember.
So how much experience have you had with dial indicators, micrometers, brake lathes, etc.?