Correct me if I'm wrong, but isn't the mph calculated as an average of your speed over the last 100 feet? So you can't really use it to compare two different times unless there is a significant difference right? I've seen cars that have been more than 5 or 6 tenths off on ET and still only been 1 or 2 mph different in trap speeds... so traction was definitely the major factor here. Again, correct me if I'm wrong.