Different Obverse Hub used on 1968 Lincolns - am I crazy?

Take a look at the top 68-P, the next 68-P and then this 68-d and tell me that the top 68-P does not use a different Obverse Hub? Maybe I am crazy, maybe its an optical illusion but they really look like different hubs. Look at the hair curl on the forehead, where the jaw line comes into the ear, its like the 68-P is taller and thinner.
If someone who has good skills with these overlays can PM me I can send the high res tru-view links. Also an SMS 67 photo may be of help.
Link to the large photo - Large Photo


Here is a 66RD
If someone who has good skills with these overlays can PM me I can send the high res tru-view links. Also an SMS 67 photo may be of help.



Here is a 66RD
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<< <i>Different dies, same master hub
LOL - You are correct