Re: Handling the G's
Perhaps a simple1 tether to the back of the helmet that goes taut when ejecting would ease the problem while keeping the quick chute deployment.
Has anybody done a cost benefit on not having ejector seats at all? Yes, you crash, you bought it, but there's a cost to the extra weight and complexity of ejectors, plus a small but notable number of accidents where poor buggers have been thrown out of serviceable aircraft by ejector related mishaps (and a fair few ejected crew are sufficiently injured that they never fly again).
Some will say that's a bit harsh, given that every hull loss would then mean a pilot loss. But demanding a lifeboat when you fly a ship specifically designed to rain death on people usually without suitable means of defence against your weaponry seems a tad rich, perhaps? Chopper pilots take more risk and have no escape options, why do the fast jet ponces seem to merit this pandering?
A quick scan of aircraft losses suggests that having no ejector seats on fast jets would have cost about ten additional lives in Afghanistan. Compared to the c3,000 allied troops killed (and 1,500 "contractors" about whom you can make your own mind up). Not to mention around 30,000 civilians.