I have a lot of experience with these products. First, in my former career with the telephone company, a special grease was used for many contact applications. As you mentioned however, it was used with the intent of protecting the contact, not improving it. But for many years now, I have used contact improvers, especially for low voltage applications. Silclear is very good, but as with any grease, it will deteriorate with time. I have seen it react with battery connections, so it clearly is not the best case there. I would recommend it with power cords, speaker connections, and interconnects. Over-application was my first mistake with this product. Lets just say the least needed for the effect is best. Caig is another product you may be interested in. Much lighter and has a mild cleaning effect as well.