there seems to be a sudden banking into the side with the bad engine....but I thought you were supposed to limit the bank to less than 5 degrees that way...
I suspect you are thinking about the use of bank into the
good engine used to cancel out slip. A combination of 2 or 3° bank and half a ball out provides the optimum performance for a light twin. A limit of 5° bank into the good engine is the certification limit on the use of such bank for the purposes of determining Vmca, so a manufacturer cannot use more than that amount in order get the Vmca (lower redline speed) figure down. This angle of bank is not an operational limit.