I'm not an expert, but I'm convinced the answer is "off". The reason is "on" accelerates growth of whiskers. https://en.wikipedia.org/wiki/Whisker_%28metallurg

I'm not an expert, but I'm convinced the answer is "off". The reason is "on" accelerates growth of whiskers. https://en.wikipedia.org/wiki/Whisker_%28metallurgy%29 https://en.wikipedia.org/wiki/Whisker_%28metallurgy%29