From everything I have read, El Producto's were all handmade until the 50's. Particularly after Sam Grabosky died. He seems like the kind of man who would not have gone along with his cigars being mm.
There is a great article on the history of El Producto here:
http://www.cigaraficionado.com/webfe...Story_7552/p/1
Either way, good review on an old cigar!