Mike for what its worth, I've changed the way I finish damascus a bit, I used to go to 1200gt and give it a series of short etches in strongish ferric, cleaning the oxides off in between. These days I just take a bit more time to get a really even 400 or 600 gt finish and give it an hour in a really weak ferric etch. Maybe 8-1 dilution. I iike the results much better on the steels were talking about.