Pete,
I would consider calling TSI to ask what they can do. Perhaps they can explain to me how the testing would be conducted. I am interested to hear what Drew knows of their previous testing on damascus barrels.

The end of the unwound riband would provide the best material for testing. It would still require pinpoint accuracy at the center of each layer, to get a representative analysis. I feel that it would be tough run a good test on patterned material. But I have to be honest, I really don't know much about how metallurgical testing is done.

Steve Culver
Steve Culver Knives