darrenphughes,
I guess I should qualify, "More knowledge does not necessarily make a better pilot." I agree that more relevant knowledge does, but being able to describe the tool used to set the rivets to attach the wing tends not to help one become a good pilot.
Much like being able to do all the work of a compass swing. Don't we train AMEs to do that stuff? If we can do their job does that make us better pilots? More versatile employees, perhaps, but not better pilots, IMO.
Cheers,
Matthew.