Cleaning them, lapping them, and showing photos of them wet/dry/with slurry will help. Also, if any have chips, closeups of the chipped areas (so we can see how they broke and what layers are inside) can help.
All right, this will take some time due to my location. Thanks for your help again.
Last edited by ferroburak; 11-22-2010 at 01:50 AM.