I'm not sure if you're trying to correct me, but I am 100% certain that you are factually incorrect in at least some contexts. My 2017 X 100D charges the SET speed up and down on Interstate on- and off-ramps as well as on sections of road that it considers to be on- and off-ramps even though they are not. It does this even when only TACC is enabled (and AP is NOT enabled). This may only be true on models equipped with the FSD software license, but I doubt that since it occurs even when I'm only using TACC. In my case, there is a "ramp" where the GPS speed limit was wrong (low) and it would reduce my active SET speed below the speed limit at the exact same spot every day. Eventually they fixed that and the behavior stopped happening unless I had my SET speed higher. I can still reproduce that behavior if I set TACC above the speed limit. On the other end of the exact same section of "ramp" going in the exact same direction, the GPS speed limit is still wrong (high), and it INCREASES my set speed ABOVE THE SPEED I SET INITIALLY. Again, it does this EVERY DAY, it does this while using TACC ONLY (not AP), and it has been doing this for well over a year, possibly two years. Just because you haven't driven in a location that causes this sort of behavior doesn't mean the software doesn't have this sort of behavior programmed into it.