Hey Gurleyman…….welcome to the forum. I listened to Ray Becker recently talking about the nice combo of Cerec and lasers. Which laser do you have and how are you using it with the Cerec.
I think that a diode is wonderful to use for troughing the margins of the interproximals for deep margins to get a better impression.
If you have cases of staining why dont you put them up here as I am sure that many would love to see what you are doing.
All the best
Glenn