10:00 and 2:00 is also known in professional driving circles as the “Nascar grip”. It’s the safest hand position to use in case of a blow-out or if you need to manuver quickly and precisely. 7:00 and 5:00 is dangerous as well as 11:00 and 5:00. You would have very little manuverability in these positions. I vote that they be known as the “dead mans grip”.