In that respect he can be correct... how many people THINK they sound to an audience is not how they ACTUALLY sound to an audience.
I have sat next to great players that I have heard many times and been SHOCKED by how they sound when you sit along side them. They know how to get results.
That is how you learn how it is REALLY done !!
I haven't recoded myself in a long time, so right now I really don't know how I sound at a distance.
Just wondering - in what way did they sound different? You're talking about being familiar with someone's distance sound first, and then experiencing their close up sound.