I am paid a part-pension for neck damage from ACM in a Mirage, turning my head to find that mongrel in our 6, loud crunching noise from the neck, constant problems since. Add to that the helicopter time, slumped in the non-comfort seat of a Huey, leaning slightly left to hold the collective, head tilted up to see over the coaming, and 1:1 bouncing from the rotors. Lumbar problems from the same.
ANVIS trials in early 80s were also uncomfortable, goggles hanging heavily on bridge of nose and cheekbones, no counterweight on the back. Luckily only flew with them for a few hours.
That bounce in the F-35 launch is awful!