I stage the tuning process. With the computer in closed loop, I dive residential speeds for about 5 minutes and make adjustments. The next test drive, with the computer in closed loop, includes about 5 minutes residential speeds and 5 minutes boulevard speeds and make adjustments. The next drive is a rinse and repeat of the second test drive plus 5 minutes of freeway, highway, or interstate speeds and make adjustments. Any subsequent test drives should include all normal driving conditions and legal posted speed limits , including a few "panic stops".

I'm very fortunate, my test loop includes a stretch of posted 70 MPH and a 2 mile stretch of 6% grade hill climb / decent. I'm not far from the Cascade Mountains Range of western Washington State. On most days, I can see both Mount Saint Helens and Mount Hood.

dave w