You have to remember with the VX's TOD you're always in 4X4 with no less than a 85/15 torque split. Rear-wheel slip of any kind will progressively apply more torque up to the full 50/50 split based on accelleration and slip. Only the TOD Axiom and Trooper have the ability to go into 2WD, the VX is full-time 4X4.

It might do you some good to get out in a field or open snowy area and throw the VX around so you can get a good "feel" for the system, then you can have a better idea of what it'll do in the conditions you're currently uncomfortable with.