Let's all be reminded that the Z is a passenger car designed for the street. It also happens to be a fairly high performance sports car. Unless you are on a closed road and on your second pass of a section of road, you can never know what variables will change in the driving environment. I personally keep VDC on even in spirited driving. High speed blind turns with elevation changes post-apex will make you rethink how good you really are.
Sliding tires are never faster than tires that are gripping. If VDC trips then it tells me that I made some sort of mistake. Better to go into slo-mo mode then to hit a pole, tree, or innocent commuter.
