300 indicated at 34650' (M0.86) for routine AAR must be interesting...
But that big, expensive helmet still looks like a significant risk to me. Yes, it's very clever with the distributed vision system and all the projected symbology, but how often would the average fighter pilot find him/herself clouting it against the canopy when moving his/her head to look out normally? And if the pilot drops it whilst walking out or crewing-in, is it tough enough to cope?