It can fly!

I updated the Onshape and reprinted the train with five magnet holes and a new spacing pattern. This means that, at all times, there is at least three magnets’ worth of propulsion. A big improvement from the previous zero, wouldn’t you say?

You can see in the image below that the ends are elevated above the track. When hit with the launcher, it maintains its inertia to spin around at a stable height.