FYI, used EzGrader for the first time over the weekend.  Struggled a bit at first getting ‘clean’ images for EzGrader to use. Figured that problem out and learned that what you or others think you see is frequently not what is.  If EzGrader scores a stamp well, then the stamp is well and truly centered.  If EzGrader scores a stamp more modestly, it truly is what it is with no emotion, no pride of ownership and no subjective considerations in the calculations.  Makes me wonder why more do not use EzGrader. Well worth the money.