Knox in Box
Rustbelt refugee.
The first POS bass I had I actually thought the saddle (one big bent piece of corrugated steel) looked cooler tightened the whole way back as far as the springs allowed. Therefore my bass was constantly flat the higher up you played. I would bend the strings into pitch constantly. My guitarist used to tell at me to quit bending because he couldn't stand seeing it. And I never noticed I was doing it until he said so.
So yes, add intonation to the list.
So yes, add intonation to the list.