I didn't read through all the nause, and was unable to open and look at the circuit diagram, but I am assuming that the diagram doesn't go back far enough inside the receiver to account for the distance from the actual AMP circuit to where the cable is EVENTUALLY split into 2, whether that be near the amp terminals or the speaker terminals.... if you have sufficient gauge wire (mono) then bi wiring makes no sense. If you want experiment with the minimum gauge wire possible for mono/bi-wire, then I think it might...if the run was sufficiently long. my 2 cents.
47LG55 LCD | Yamaha RX-V565 | HD DVR | PS3 | Wii | 2 X Trio12 DIY subs | 3 X Energy Take FPS, 2 VS Surrounds (SS), 2 X Take LCR (SB)
Upstairs: 2 X RC-70, Yamaha RX-V863, Monitor Audio RX-w12 Sub
Bathroom: 2 X Energy Take LCR
Car: Sony Xplod HU | Xplod 6X9s | Kenwood 4"s | Alpine Type S 12" sub | Rockford Fosgate Amp | Legacy Amp