My D and G strings are lacking in volume, and the solution seems to be to raise the bottom side of the pickup to get it closer and boost sound. I've never done this before, are these pickups sitting on springs? If i loosen the screws closest to the volume/tone/pickup knobs, will the bridge raise up on its own? sorry if this question seems a tad simple, but any suggestions would be greatly appreciated. thanks alot you groove monkeys.