I've heard good things about the Telex Stratus 50D. Excellent ANR (50db I think) but, also a very good passive headset for when your batts pack it in and you don't have spares. Think if i was back in GA aircraft though, i'd try something like the Clarity Aloft. No big muff's clamped to your noodle. Although, molded ear pieces do tend to become uncomfortable and cause hot spots in your ears if you wear them for more than a couple of hours.