What? And he figures out federal and local taxes on every paycheck? Seems like you'd be getting a paycheck every day.

Or is he saying that he'll pay you weekly but he won't pay for any open jobs? That seems unfair if you are waiting on back ordered parts. Most jobs pay you for work done in a week, not "work done that we could bill for" in a week.

Or is he doing all this because jobs that you do have parts for aren't getting finished? Or paperwork isn't getting turned in?

I've been guilty of sitting on paperwork in my younger days. They cured me by making me go over every open ticket when I came into the shop. If I couldn't explain why a job wasn't done yet, it'd become my first call the next day.