My daily morning commute is 8.48mi +.01/-.00. If my front (readout) tire gets 10psi below my normal 110psi I get a consistent 8.49mi commute. If I pump up to 115 I consistently get a 8.47mi commute.
Of course if I make memorable changes to my normal line I see differences as well.
Non-memorable changes from slightly different turn radius or start point of merges or lane position don't show up.
Last edited by noisebeam; 05-05-10 at 12:29 PM.