Sounds like a nice moment but let's not act like the guy handed down the ten commandments of masonry. Wet mud is a basic fix anyone learns in their first month, and one old timer's glance isn't some magic wisdom. It's a solid tip, sure, but half the trade already knows it.

Tried telling my buddy the same thing for ages, then he got a PC and suddenly cross-play was "fine" (funny how that works). Turns out the trap was just us being stubborn. Tulsa cousin sounds like he earned his apology.

Buddy of mine ran a diner and did the exact same thing, went from 50 to 100 and his hauler started charging him extra because the grease caked up and took twice as long to suck out. He swears by sizing off fixture units now instead of guessing.