Interesting reading the posts guys.
A Captain making inputs routinely while the FO flies can mean either, that he lacks confidence in himself or he is just plain arrogant. Hopefully, such Captains are a minority. In routine fair weather operations, the PMs hands or feet on controls is a nuisance never mind who is PF.
But there definitely is a need for the Capt to be alert in the crucial phases, should things start to go out of the FOs hands as sometimes they do. Being alert may range from just watching to following on controls or even taking over in condns like gusting winds, rain or the likes. There is nothing to feel offended about here. After all if FOs were as good as Captains, they would be Captains.
With the Capt as PF, there have been instances when a low experience Captain in bad weather has got much help from the FO; and therefore the total experience rule. Even so, if its a bad situation, the FO calls for a go around. The FO keeping his feet or hands on controls is entirely useless and he should be asked to keep off until a rare case of an incapacitated Capt.
So a Capt following on controls in critical phases with the FO flying should be fine, but when the Capt flies, it is safest if the FO just keeps clear... almost always.
