I'll try to answer this . First take your swinging pick find the true center of the pickup holes,scrib a line or sharpie a line left to right from hole to hole. Measure center to center of the holes and write that distance down. On a flat surface place the pickup end on a piece of 1/4 inch flat stock,measure to the flat surface. That is the distance from the bottom of pan to your pickup holes. Mark that line on your pan,mark the center to center measurement you wrote down.center punch and drill some holes. Hope this helps.