Use the theory of running zero toe all around (or even slight toe out in the rear) should be used as a baseline. Depending on where you drive, the track you spend most time on, and use case of your Boxster (or whichever car you have) you may need to adjust accordingly. The part about SoCal folks hitting 80 to 90MPH on toll roads is quite the norm. Us plebeians cannot afford the use of the tolls and therefore, stuck on the Interstate at crawling speeds.
