Model S 90D, 2016, pre-updates. I love TACC and Auto-pilot, use these features a ton, and appreciate them no end in highway slow crawl and stop-and go. Typically the experience is buttery-smooth. A couple of days ago I was in a really bad stop-and-go stint in Fremont, CA, not on a highway. Exceptionally slow, frequent full stops. And TACC felt very jerky for a couple of miles (which translated to well over 20 minutes). It felt like the car would start breaking too late, then the sensation was as if the front would break a split-second before the rear... just a bit odd and rough. Once on the highway, 680 north in a slow crawl... back to buttery smooth. Anyone else have this experience?