I know it's an old thread, but I searched, and found this.
Good find on the 'two wires swap' to reverse the shift pattern. I will do it on my X, but contrary to the OP, it will be to have the upshift when pushed forward.
To me it is the direction that is more natural. I had a muscle car, euh, truck long time ago, and I installed a B&M ratchet shifter to complement the shift kit in the tranny, and the shift pattern was, forward to upshift.
I tried to get used to the X5 pattern (pulling=upshift) but can't get used to it.
I like to use the manual mode in traffic driving, it keeps the tranny from changing gears continiously.