Croqueteer - we might be talking apples and oranges here - note I said 'crossed controls', which is what
Murray says
[the instructor] corrected the bank with right on the yoke....
I can't see how the rudder vector can come into play in that axis if the wings are kept level with crossed controls. With (significant amounts

) of yaw-induced roll, yes, but not in the wings level situation. Which points towards the simple drag explanation, or one of the
Scientist's more complex explanations.
cheers!
foggy.