So whats the answer then smartarse? Really useful reply that one.
OP, the easiest way to turn it off entirely is to unplug the three plugs on the ABS unit on the inside of the wing next to the brake fluid reservoir. Be aware, this will also turn off your ABS though
For those preaching, the TCS on the 350Z isnt all that - it comes in too early and is very clunky int he way it works, and if you really think instant death will befall anyone who dares to press the button and turn it off I hope you never have to drive a TVR
Further from this, I had a switch put into a yaw sensor so I can turn it all off whenever I like, I found the TCS would still kick in a bit at some of the bigger drift corners and I'd lose the front end.