Em773ER
In addition to the excellent answers below/above ( whichever way you look at it )
I would suggest Pilot A would have a lot more confidence, spare capacity and better situational awareness than Pilot B. Pilot B's ability to follow a green or pink line on an ND will not be argued, but his ability to feel, hear, anticipate, sense, judge, think, love, nurture ( sometimes the BSJ's need this ) will definately be lacking. This will probably cause him to struggle through his training and checking, unless of course he is an Ace.