I typically drive about 5 MPH over the limit, but I think 10 over is fine as long as the road/weather conditions are good enough to allow for safe driving at those speeds. Problem is, drivers now days aren't happy going 5-10 MPH over the limit. Most people seem to drive 15, 20, or even more over the limit, and too me, that's just too darn fast. What do you think is a reasonable amount over the limit?