For us, manual flight = manual thrust unless you are operating to a thrust target - such as Take off, initial climb or Go-Around. If we are manually flying to a speed target, the autothrottle is disconnected. The reason is the large pitch couple associated with thrust changes. I believe most 737 operators adopt this technique - and I've been told that Boeing instructors teach it.
Last edited by Earthmover; 8th Nov 2002 at 00:04.