They don't seem to say why it didn't work. I wonder if it was not just the change in gauge, but tolerances as well. I got to see "Dr. Yellow" running on the s

They don't seem to say why it didn't work. I wonder if it was not just the change in gauge, but tolerances as well. I got to see "Dr. Yellow" running on the shinkansen line and it checks everything out. https://en.wikipedia.org/wiki/Doctor_Yellow https://en.wikipedia.org/wiki/Doctor_Yellow I wonder if the slower-speed lines have looser tolerances. Then maybe running the gauge-change train on the slower lines might kill the train's tolerances before it moves back to the super smooth high-speed lines.