ok, regular strat setup, and i decided to replace the bridge pickup with a splittable pearly gates -- it sounds great in #1, bridge, position, either as humbucker or split(to slug) -- and #3, the old middle single coil is fine -- but in #2 position, split humbucker with middle, i've lost a lot of volume -- i have several of these cheap strat clones, all same manufacturer, the others don't lose volume like this in #2 -- wondering if i should try swapping the green wire(-) with the black(+)?