Stealthing with the recorder in the shirt pocket works until you want to look at the levels or just look at the display to make sure the recorder is recording.
Completely disagree. I've heard this before and I don't get it. How hard is it to open the shirt pocket a bit, look over top of the recorder and check the levels? You'd be seeing the meter upside down, but with a minute's practice at home, it shouldn't be a problem.