at first i thought that you accomplicied the 7.5 mark and no i do not thing that you can make 7.5 min. in my track which is small to medium i make the most economy out of all the other drivers(i have the sct) and manage to do 6min and 20sec in cold weather conditions, i thing that at most you would reach the below 7min mark. but your steps are correct for making more run time