What I mean is, I don't want to put one counterbalanced man on a rod full of non-counterbalanced men. So, I want to ascertain if the men on my table are or are not counterbalanced.
Is there a physical feature (aside from the 'point the man's foot up and see if he stays' method) which distinguishes the two types of men? A serial number? A special groove? The size of the head? The face of the guy? The pattern on the foot etc...
Or are the two types of men identical?