scottf200
Well-Known Member
OK, guys, chew on this. I hadn't had any pingponging or wandering at all with 2019.40.2.1 BUT I always drive with a small counterweight on the right side of the wheel. 150g, say 5 Oz of BBs in a lil'bag held with velcro at the right cross-member. That's not enough to defeat the nags. I started doing this because it lets me satisfy the hands on wheel torque request by lightly moving my hand the way I hold it on the right. Without the counterweight I was too easily jerking out of AP, and that was just plain unsafe for me. Today, for the obvious test, I removed it. With no counterweight the ride was entirely different - all sorts of drifting in the lane and other problems. After I put it back, everything is fine again. It's a striking difference. Fellow tweaks can try it and report. It's possible that people who haven't seen drifting are unconsciously applying a little pull to the wheel the whole time. So that the "sometimes it's better/worse" reports come from how we hold the wheel?
Ping-Pong: Those are pretty interesting points. With my signature Model X I received a 'paper weight' in the shape of the car. I've experimented with using this to weigh down one side of the steering wheel BUT I ALWAYS have my hands on the wheel - saves time from when AP tries to kill you. I have not noticed ping-ponging (subtle side to side) with 2019.40.2.1.Constant subtle but noticeable corrections left and right between the lane. It used to drive dead center straight in the middle of the lane, now it constantly swerves left and right and if you hold the wheel just tight enough you feel the constant corrections in both ways.
Herky-Jerky: I *have* noticed herky-jerky speed up/down/up/down and is magnified by following people not on cruise control. I did a controlled test following an electric car on cruise control and saw much less. when I say 'saw' I mean my collected data using ScanMyTesla.
Re: Ping-pong with and without weight --- could be a good test with ScanMyTesla data.
![S0guCmA.jpg](https://i.imgur.com/S0guCmA.jpg)