Anyone who tries to explain away the magic 'shadow' down Mr Lovelady in the ridiculous way you have done, Mr Mason, certainly is! 
If I understand you right. Alan, there has been some alteration of several frames of the Wiegman film in about 3 or 4 of 18 frames per sec sequence, in which the conspirator film experts were able to blacken out the shape of Oswald.
and I asked why the conspirators would decide to leave SOME of the image of Oswald, his head as it were, rather than blacken the head out also, so as to leave NO chance of any Oswald EVER seen at all in the Wiegman film?