I'm done with American Imperial measures. Every time I come across them now, I stop reading, and read something else.

If you're not willing to convert from your dumbass Imperial measurements to metric, that literally the rest of the world uses, I'm not willing to put the effort in to read your nonsense.

FYI: a "customary unit" is metric, not fucking American Imperial. Calling your Imperial system "customary" is like calling it the "World Series" when only one country competes