Thanks. Read it. I am going to try not etching until the end and use a stronger, less diluted Ferric Chloride. I will watch the barrels, doing them in a tank, rubbing the barrels with protected hands, and then remove them at just the right moment. Then I'll quickly wash them down with baking soda. That's the plan. But I have to be careful. Etching will remove metal if the barrels are in the solution too long. That's why I am going to do the etching in an open tank so that I can watch and remove at just the right moment. That's the plan. We'll see how it works out.
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