In large format, oversized files wastes your design time and your printer's rip time though many printers will stupefy a file to the optimum for their production flow. Best for you give them what they want.
My Printer has a brain in the jar that is connected to it. I don't have to talk to mine. We communicate through telepathy.
That reminds me. Anybody remember a movie back in the 80's about a man that had a computerized apartment but then spilled whine on the main part and it came to life and went after his girlfriend. Digital dreams maybe. . . I almost think it was a MAC too. . . .
I don't make mistakes. I thought I did once but I was wrong.