This route was unsuccessful due to the thin population along the line, and the route was changed on June 25, 1950, from a Baltimore–Cincinnati daylight schedule to a Detroit–Cincinnati daylight schedule where it would remain until the creation of Amtrak. On this new routing, originating from the New York Central's Michigan Central Station, the train sets became successful almost from the beginning. This replaced the "Great Lakes Limited," which southbound, ran from Detroit to Cincinnati. Passengers wishing to travel all the way to Louisville had to take an unnamed night train counterpart, #57. The northbound night train counterpart was #58. The 57/58 became named the "Night Express" in 1960. The "Cincinnatian" on this route used lots of mail cars, which contributed to the route's success.