i just got the 2 64M45C's for my bass and the 5.2 HR preamp. i'm ready to install this stuff, but all the instructions are talking about a "switch" that i'm wiring to, instead of a blend pot. the blend pot is dual-layered and on the preamp installation guide it only shows ONE wire coming from the neck p/u and ONE wire coming from the bridge p/u, both of which go to the middle tab on their respective layer of the blend pot. also, the mid control pot is a push/pull pot with a 6 tab "switch"(?) underneath it. however, both my pick-ups are humbuckers, hence 4 conductors, with red, white, black and green. so since i've got no switch, i won't be wiring to a switch-style wiring, but i'm not sure what to do with the extra wires or how they should go. i'm just looking to use the standard configuration, full-on humbucker in rythym, full-on humbucker in bridge, with the blend pot just blending between them to get the most sound. OR will i be wiring the black or red wire to the blend control pot, and the other wires (red white green) to the switch on the mid pot? anything you guys can recommend? here's a picture of the preamp. there are 6 tabs on the switch sitting on the middle pot, but it's facing away from the camera so you can't see any.