I took the APS2 bridge pickup out of my Albert Lee and swapped in a Seymour Duncan Twang Banger. Now in positions 2,3 and 4 I have a terrible buzz/hum. I wouldn't think there is anything special about the Twang Banger that would cause me to have to reverse the polarity of the middle pickup, but maybe I DO need to do that. Might that fix my issue do you think? There is no hum in the bridge pickup or neck when in position 1 and 5.