Before I ask for help, let me describe what I’m trying to do... I have a Fishman M-100 pickup on my mandolin. Its piezo element is under the saddle. I want to use the M-100 saddle element with the M-300 bridge element (the element is in the base, making it pickup more of the top/body). I want to route each into a blend control to blend the brighter string tone of the M-100 with the warmer body/top tone of the M-300. The Fishman Power Chip seems to work with regular guitar pickups on the one hand and a piezo on the other. Is there a solution for two piezos?