There is no way, now i can configure additional GA Thrust. Can I?
I sometimes wonder about this philosophy. Different airlines have different ideas about it. Some said, "if above max landing weight, then use bleeds off." others said, "captain's discretion." others, "always go bleeds off." They can't all be correct. Consider the bleeds off takeoff case: how much extra weight does it give you? Not a lot; and that's off the ground , not at MDA. So is it really so critical. I suspect it's there, and for Boeing at Captain's discretion, because it's possible to configure thus, and to protect against any comeback should there be a problem caused allegedly by lack of thrust.