Matthew,
Dont for a second beleive -2G in an Apache. It has a 4% hinge offset rotor, which will lose roll control at about -1 G and its blades are certainly not capable of producing 40,000 lbs of negative thrust. Chalk that tale up to too much Budwiser and too few ethics!
I certainly can believe zero or even -1/2G, though.
Remember, at zero G the aircraft is making the same radius downward that a 2G pullup produces upward. Each case has 1G of maneuver being performed from the trimmed 1G level.