I read a US study many moons ago where they took 3 groups to test how g tolerance improved over time. One group did anaerobic training, one did aerobic training and the third did nothing. The anaerobic training group did the best with the couch potatoes coming second - aerobic fitness bad for g tolerance!
Basically high blood pressure is good and decent sized muscles to squeeze is good. Decent muscle mass also helps protect the body in an ejection.
G tolerance wasn't really an issue for the RAF until Typhoon came along.
