If there is ONE thing that takes the experience of an entire route down for me, it is when the tracks make the train stutter. This is most commonly found at the point where the tracks suddenly go uphill or downhill. In TSW1 there is a major stutter when the train goes down a hill on the Long Island Railroad. I am sure you know which one I'm talking about. Such a blunt break from immersion. I am amazed that this had passed testing. And despite hoping for better, in TSW2 there is a very noticeable stutter as well, going up and down the hill in between Queen's Park and the underground entrance. For example, when you exit the tunnel, ascending to ground level at 15 mph, and the train passes the junction just before the station, you see the train suddenly stutter to level out. Same of course on your way down. Particularly annoying, because this area - going from underground to overground - is one of the route's spotlight moments. Can you please smoothen these sections out? (There are plenty more if you go down the routes and take note of them.)