That's why I'm only doing the "G". They aren't going to pay for the entire MGD to be re produced. I'm well aware that it wont match perfect but the closer the better. This is a pretty easy going repeat customer. As far as washing and processing, That's what the bombardment does. Not an actual wash, but it pulls the impurities from the tube. I wasn't sure if he U V light would show enough difference in the white tubes to visually see the lumen difference.