<HTML>I have a customer with a Chickering grand that I think is well over a hundred years old. (The action brackets are wooden.) It may never have had the action regulated. I broke the first two adj. screws I attempted to turn, put a few drops of Protek CLP on and tried again in a week. They were still not budging. It seems like this was discussed on the list some time ago, but I couldn't find the right search parameters in the search engine. Does anybody have an idea of what to drip, spray, inject into the wood to allow movement of the screws and, ultimately, regulation of the action? Or, alternatively, the proper search terms for the archives? Thanks, John Stroup South Bend, Ind.</HTML>