The point here is that once George is flying, our mental paradigm becomes letting him fly and just telling him what to do. This occasionally results in way too much energy and button-mashing to make a last-minute change. Its ever so much simpler to be hand flying in the first place and, well, aim elsewhere. So, pick an altitude below which youll always hand fly. Perhaps its 1000 feet AGL, or maybe all the way down to 400 feet (but no lower).