Apples to oranges comparison there. Those guys have very little need to go above 10k. Their airplanes are built to do their stuff low, and their experience levels require less of a safety pad altitude-wise. Even then, to work the airshow circuit, they are getting vetted multiple times by the FAA in order to lower their min altitude for aerobatics. UPT airspace puts you up above 10k regularly for area work. Plus spins aren't authorized below 10k in the T-6. That's a pretty common event in contact. There also wouldn't be much room to do aerobatics in the MOAs, our extended trail, so that stuff would need to be pared down, especially since you're available MOAs got cut in half. You can make an argument for breathing cabin air, but that's also being pulled off the engine. And they don't know what's causing the problem. With that, you could just leave seat pins installed and leave the mask hanging, and breathe ambient air. But then ejection becomes a slow process. Hopefully Stan doesn't do anything stupid or you take a bird/have an engine failure on the final turn. Having that mask up protects your face from CFS. Then again, it's not like getting blasted in the face (so to speak) by molten plastic is that bad-not like burns on the face are life threatening or anything. There is increased risk doing all of this, and the can is getting kicked down the road. Meanwhile, the line IP sees all their safety mitigations being taken away (you don't need external CFS so someone can pull you out; your seat sequencer probably works now; I know you're tired, but we need to increase production so we're doing weekend ops). These IPs see that their safety nets being eroded, and this just add to the laundry list of problems they see with AF, pushing them to punch out of the AF after their commitment (at least that ejection handle still works, for now...) Let's bring back the mighty Turbomentor! No OBOGS, do everything below 10k, open that cockpit window in flight to fight smoke/fumes, no ejection seat to maintain-just tuck and roll, and beta. I don't know what I'd do if I was still flying the T-6. The biggest problem I see is that they don't have a root cause for the issue, and are just putting a bandaid on the problem in order to solve their production problem (which in turn, is their bandaid for solving the retention problem).