I'm afraid I am just a amateur hack when it comes to pulling g, but have found that at my level if you have pulled more than 4g in a maneouver you have cocked it up. So repetitive 4g is fine but knackers you after a short time. Somewhere between 4g and 5g I start to see vision changes, and I really don't like seeing 5g on the meter as I'm getting a bit old for that sort of stuff and it's a sign to head back home. No doubt you experience a lot more than 7.5g every time you jump off a low wall, but thats a smartass answer and I don't think the question was about that.