If you are using your netbook for surfing the net, I don't think dropping the VID voltage is going to make any difference. Most people don't realize that these CPUs are designed to enter a lower voltage state at idle. Lower than the VID setting in RM Clock or ThrottleStop lets you access. I'm interested to see what difference it makes so I'll try to come up with something you can test but I don't think you're going to see any significant difference in battery life.