Yes, I've seen some 1st quality balls with cg's mismarked more than that. You've got to remember that the QC dept can't manually check all cg's, so they accept whatever the in-line measurement is on symmetrically-cored balls. For asymmetrical balls, I'm not sure it they recheck if the cg is out of line with the pin and MB or if they just sell it as a second. If you want to confirm your location, mark the spot you've located and go back through the procedure again. Or check the spot by setting the ball in the scale with the cg dead on top and balance the scale. If you then rotate the ball, keeping the cg dead on top, the scale will balance at all positions if the cg is correct. -- JohnP