Good quesiton, JammedStab. I guess you have gained an advantage of not having to use max thrust for takeoff. Maybe not a big deal on the 744, but on the 742 with the worn out Pratts it was something to avoid, if possible. Since ATM is used on the longer runway instead of a straight derrate (TO 1, TO 2), then you could still push the power up on the rest if you lost an engine. Plus, if you are over guarantee you get more time taxiing to the longer runway. Would management call you on it?