wsherif1 says: ... "Do you mean that an experienced co-pilot would change his mode of operation with each different Captain he flew with? All the other Captains lauded Sten's piloting abilities..."
I don't think so, ...but not every flight includes a wake encounter.
Capt LaVelle's recollection and comment to the NTSB about F/O Sten Molin's aggressive manipulation of the rudder on the B727 at an earlier time is a statement of fact and not a judgement about his character or about his overall flying ability. It's an important observation that may help in determining a probable cause for structural failure. Already many carriers have issued revised guidelines and cautions on the use of rudder.