I've used the 850's on our jumpseats often. Personally I don't like it. It's much more expensive then the 750, has a lot more to break (ie fix $$), and provides very little noise attenuation in comparison to earplugs. The ANR of headsets typically filters our the low end freq noise, but the high freq "white noise" of the wind hitting the windshield cannot be attenuated. This is what causes our high freq hearing loss. Earplugs work the best for filtering out that noise, as there is very little low freq noise to attenuate on a jet. Prop, yes, but then you'd be better served with a Bose or Lightspeed.