Still not a good explanation for the error in stone unless the cuts were being made very, very quickly and it still doesn't hold up!
Perhaps the cut was being made from opposite side of stone than it's present orientation on a stand that limited visibility?
I guess we could do "What ifs" forever....who's to know?
Is there a thing of which it is said, "See, this is new?"It has been already, in the ages before us. Ecc 1: 9-10