@boonedocks By the way, I called in about the ping-ponging I was having on this build and, after discussing with the main service line and the service center, they had me try doing a full restart(going into controls and hitting the "power off" button, letting the car be off for 2 minutes, and then hitting the brake to turn it back on). After that, I
also received an OTA update to 2017.32.6 ca28227(unfortunately, I applied before being able to try AS again, so I can't disentangle which had the effect) and, after that my issues with AS are solved. If I pay really close attention, I can feel a slight motion left and right in the lane, but it's not enough to bother me at all(and my wife and daughter slept comfortably for ~1 1/2 hours with AS going the whole way, 0 disengagements).
If I had to guess, I'd say the restart fixed it, so might be worth a try if you're still having issues.