While making custom pickups for Cheap Trick back in the early 80’s the instruments were custom built for them by Hamer Guitars. Along with the custom pickups the instruments included custom electronics. I wound individual coils for each string on their basses that included volume controls to balance the output of each string. I believe they also had a pan pot to balance the pickups from left and right channel. Many wiring and pickup ideas can contribute to unique and interesting tones that are heard on many recordings. Try using one of your instruments to experiment with.