I have a Hamilton 18s. The minute hand hole is a hair too big. Is there a way to tighten this hole? I have a staking set. Could any of those stakes be used to tighten the hole. Is this a permanent fix? Secondary question. I see sets of hands sold on eBay. Were I to buy a set, how would I know in advance that I might have the same problem? Seems risky to me, and not inexpensive.