Hand flying modern aircraft is fine, but the handling pilot must realise that he is significantly adding to the workload of the non handling pilot.
I disagree. I've flown many a trip where the CA decides to hand fly a bit more than usual. I flew with one such fellow only yesterday. I didn't feel that my workload was significantly increased. Perhaps flying a complex SID in a 727 or DC9...maybe. However in a modern jet, I fail to see how the workoad increases to the point where safety is compromised.
Before anybody attacks me, I'm obviously not talking about a busy airport while avoiding weather on a crowded frequency etc, but on a normal day, what's the big deal?