Yeah.....unless it is raining, the VDC is off.

Kinda takes all the fun and zip out of the Vortech if it is on........

Go to a track and learn how your car behaves without all the electronic gizmos.

 

I leave VDC on the majority of time because I rarely get much chance for 'spirited' driving on my daily commutes. Still, I turn it off whenever I track the car or participate in 'spirited' driving. I find VDC far too intrusive when I'm having fun and impossible to live with at the track.

Like you, my previous car was AWD, but I've always found the G to be very predictable with VDC off (as long as the roads aren't overly slick from rain, snow, or ice). You sound like you have track experience so you'll likely be fine without VDC. Still, the advice to go to the track to test the limits and really get to know your car is solid and doing so will help you decide if YOU are confident with VDC off.

Two points -
1. If your natural reaction is to back off the gas as soon as your rear end starts to slip out leave VDC on. This is how most people were taught and it is not the best way to handle the situation in a realtively neutral handling, high powered RWD car.
2. If the roads are slick VDC is a great asset.

 

The first thing I do after I start the car is turn the VDC off. (I might leave it on if it is snowing, or very wet, etc)

As other people have said, I find the VDC comes on much too early, and is overly intrusive and jerky. I've driven other cars with VDC-type systems, and some of those systems are not nearly as abrupt as the G35 system.

I've also heard stories of people trying to do a quick merge into traffic from a stop, and the VDC doesn't allow even the smallest little wheel spin and cuts the power, and you almost get hit by the cars coming in traffic.
Granted, some of these people may be too impatient, and are trying to merge too aggressively, but in some cities it is is almost a necessity if you ever hope to get on the highway, etc. (Here in Atlanta, if you have your turn signal out and are trying to merge to the next lane, people actually speed up to prevent you from merging, thats how nice some people are. )
Sometimes a little wheel spin is OK vs. cutting the power.
Point being, I want to make that decision, not the computer.
I feel safer with the VDC off.

I do agree that you need to get to know your vehicle (true for ANY vehicle).
Take it to an autoX, or find a big, safe, deserted lot and get to know the limits of your car.
--> It all comes down to experience.