Again, I don't understand why you feel you need ANR in a turbojet cockpit. Apparently you do, and that's fine. You indicated using earplugs with Telex Airman 750's. I can't imagine why anyone would do that...why even bother with 750's if you're going to wear ear plugs, anyway??
If one side goes out in your headset, you call telex, and they fix it for you. They're good about that. Most manufacturers are.
My guess is that you are looking for ANR due to the length of your flights. If you have a Sennheiser and like it, why not simply make the padding adjustments to make it fit? Slip an oregon aero headband, and try some cloth earcovers.
Otherwise, get the bose fixed, or sell it to me.
If one side goes out in your headset, you call telex, and they fix it for you. They're good about that. Most manufacturers are.
My guess is that you are looking for ANR due to the length of your flights. If you have a Sennheiser and like it, why not simply make the padding adjustments to make it fit? Slip an oregon aero headband, and try some cloth earcovers.
Otherwise, get the bose fixed, or sell it to me.