Back when I was young and noise cancelling headsets where not yet available I paired earplugs with a David Clarke for really noisy airplanes (Islander, Tracker, T 28). I had no problem with the intercom/radio and my hearing is still good. I was thinking it was just me. Somehow the “Kermit” head set...

Two on two off always sounds attractive, but the reality ii means is you are gone half the time. If you are needed at home for what ever reason, trust me, that sched is not for you.