Yea as soon as he explained it, I understood what he meant...It's understeer under power, and that is usually mainly due to the car's weight distribution. Like a rear engine Porsche for example is very prone to "push" because there is a lot more weight at the back and that gives the rear of the car a lot of traction. When you hit the gas in a corner, that rear grip and acceleration makes the front wheels get light (like a loaded pickup truck behind it's rear axle, it wants to lift the front wheels off the ground), and that causes the front to plow as you loose a lot of traction in the front tires when you take the weight off of them.
I haven't noticed a lot of "push" in the Z with any tire setup I've had on, some road conditions may sometimes encourage it, but the Z is just generally a tail happy car
