The Solution? Don't hit it with your pick
Does it have metal covers?
most of the time, severe microphonics is caused by the pole pieces vibrating in proximity to the cover.... If it's not causing you any feedback, I wouldn't worry about it.
If it really bugs you though, screw the pole peices down until they sit just bellow the cover, put some masking tape over the cover, covering the pole piece holes, and dunk it for about 10-20 mins in a pot of melted wax, not exceeding 140 degrees.
Pull it out, and set it cover side down until it cools and the wax hardens. Remove masking tape, clean off excessive wax with some naptha and a microfiber cloth, and reset the pole pieces.