I have a Fender HM that has little, if any, tone control. I can't get any brightness out of it, just soft and warm. The tone pot doesn't feel bad, but I would think that it would likely be the culprit. I'm a tech. My electronics skills are strong. But, I've never had to swap a pot before. In other words, I'm in a familiar neighborhood, just walking down a new path. Any ideas/suggestions?