Just hand washing the 12 glasses to swap out the old with the new.  Discovered the inside of 1 glass is extremely rough with specks of what I assume is gritty glass from the manufacturing process.  It isn't as dense as an emery board so I can't file my nails on it, but size of glass specks is same size, 25% as dense as an emery board on 50% of the inside vessel.  Used a green scouring pad to see if it would remove the glass specks, but they're permanent.  Duralux needs to improve it's quality control.