okay so my next electronics upgrade will feature my 3 pup pbass with a seies/parallel switch in addition to a 3 way on/off/on selector switch, already installed w/no problems, to select between having the neck on, bridge on, or neither on. the traditional p pup will always be on and is not affected by the switch. now i want to add a series/parallel switch to choose between the middle pup being in series/parallel with whatever pup i have selected on. ive done some searching and put together a diagram to show how i think this can be done. my concerns are: 1. will it work? 2. will my middle pbass pup be affected if i dont have either the neck/bridge pups on 3. will the middle pup's volume pot control the output for both pups when in series? after what ive read i think it should work and as far as point 3 goes i dont have a problem with that. the main concern is keeping the middle pup problem free. after all, this thing started out as a p bass and i want to be able to keep that tone, hence my current selector switch can cut either of the other 2 pups if i want. ps. the pots are going to be stacked cocentric w/ tone. i dont think this should change anything just left it out in the diagram for sake of simplicity.