that is all good, but the main issue is the physical effects of G Loads on your body which cant be effectively represented..
Example: When you're under 5 Gs, your limbs will feel 5 times heavier than what they are, with a resulting limitation of your moving abilities and blood shifting which, if sustained for too long or increased, can cause tunnel vision and blackouts..
some examples here:
G-stress test gone good
G-stress test gone bad, really bad...