40 lb pull tab.... sounds like a good idea, out of the way so it doesn't get kicked or pulled inadvertently; but I suspect the earlier design (a knob you turn) might have been better, 40 lbs is a simple amount of weight to pull under duress, might even be simple to pull after holding my breath for 60 seconds (and if you can't hold your breath for 60 seconds STFU) but in a plane traveling at a high rate of speed potentially pulling G's ?? I've only pulled a couple of G's in aerobatic training (prop plane, T34) but if the level of effort increased in multiples 40 lbs becomes a crazy amount of effort *AFTER* you have been without good air for over a minute. The only error this pilot made was placing his trust in those that deemed this plane safe to operate. If they can't monitor pulseox, they should auto eject, ejection at high speed is nearly fatal but not so nearly fatal as plowing in.