I have a microphonic strat pickup that needs some attention. Normally I like a pickup to be a bit microphonic, but this one squeals when turned up, and makes a very loud sound when I tap it. What are my options? (I don't need full on vacuum potting, I just need for it not to squeal.) Dipping in wax would be the obvious solution, but are there easier fixes? For example, could I heat it up with a hairdryer, pour some candle wax onto the coil, and melt the wax into the coil? Or dipping the pickup into a can of varnish? Thanks!