Tbh Ray was right and your trainer was wrong, which is a fun way to find out. Nothing like a load swinging 10 inches past where you wanted to make you a believer in the old guy's advice. Next time just listen to the old timer the first time and save yourself the gray hair.

Man, I have been in that exact spot before. I got into one of these arguments with a guy at a cookout and spent like twenty minutes pulling up stuff on my phone to show him why the earth is round, and he just kept smiling and nodding and then said something about NASA lying. That was the moment I got it. He was not there to learn anything. He was there because being the guy who knows the "secret" makes him feel special, and no chart or photo was ever gonna beat that feeling. So now when it comes up I just ask questions and listen, because fighting it only makes them dig in harder. You cannot out fact somebody who did not use facts to get where they are. Best thing I learned is to just let it go and save your energy for people who actually want to talk.