The concept of driveability is such an underrated concept with our hotrods. It's why I ripped my Falcon apart again last summer, and it sounds like why you're analyzing components of this car that most would never even consider, given the monumental quantity of engineering and re-engineering you've put into the Mustang over the years. As ridiculous as it sounds, while great track performance is a real thing, a quick trip to Safeway can be the greatest judge of all the sweat and blood you've poured into the thing . . .
That said, consider this another vote for (the need for) some sound and video of the legendary "Preston's Mustang."