I don't do a lot of interstate highway driving but when I do I almost always use self steering. And , of course on occasion, I sometimes forget to keep the slight turning pressure on the steering wheel. Then I am warned and return my turning pressure which sometimes is too much and Tesla kicks me our of self steering because I have over compensated for my lack of attention. At lower speeds this does not matter much, BUT at 75 mph or more this can create a disaster... a sudden swerve to one side followed by quick over compensation to the other! I suspect this is even more dangerous if you steering setting is set to "sport" rather than "normal" or "mellow". No real disasters yet, but good to be forewarned and aware. Or maybe it's just me?