Medium speed is the safest. Changing lanes too fast offers less control and more body pitch. Too slow and it hogs both lanes too long and that could be dangerous. Jerky drivers are scary. What's the hurry? Smooth is controlled.

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"I have spent MOST of the money I have made in my life on expensive women, expensive cars, and expensive drugs. The rest I just wasted." - Myself "Belief in the supernatural, reflects a failure in the imagination." - Edward Abbey "Give me a firm place to stand, and I will move the Earth." - Archimedes