Hey all, author here. I had no idea this hit hackernews until my website traffic spiked. Happy to answer any questions. The scooter is still holding strong.
Does the scooter try to stop abruptly when you completely stop the throttle? Most drills today have this behavior, that I don't know the terminology for, where they eliminate their inertia immediately upon the trigger no longer being depressed.
I lean towards the right but lean the scooter towards the left a bit. As long as your body weight is rightward the scooter stays stable and you can turn.