getting a guitar body with odd pickup options, 2 P-90 routes and then a humbucker route in the middle, and was thinking of either getting a screamin demon or a p-rail in the middle. I have a 5-way switch so if I got screamin' demon I could wire it with the 5 way and possibly have coil tapping, but I'm not sure how I would implement the P-rail, and if I need to put in another switch just for the p-rail. Can anyone give me some advice?