So I noticed last night that on my, new to me, Strat bridge pickup it has staggered poles and the D string pole is sunk down to being flush with the plastic and there is a very noticeable volume drop on the D string when going from string to string. Is there anything I can do to fix this? This is a 1999 MIM Strat and he said the pickups were "re-wound" a few years ago. They sound amazing, so I want to keep them. I don't know anything about pickups, so any advice would be appreciated.