Between 1925 and 1931, afternoon rush hour service was changed to the following: Between 1931 and 1937, local morning trains were shifted from beginning at Atlantic and Grant Avenues to beginning at Grant and Lefferts Avenues.

Ridership counts at the time found that during rush hours, 5,000 passengers transferred between Fulton Street and 14th Street–Canarsie trains.

Initially, these trains bypassed all stops between Hinsdale Avenue and Hudson Street.

Once the platform extensions at stations in between were completed on October 4, 1937, these trains began making these bypassed stops.

[1] Between 1937 and 1939, local morning trains were truncated at Sands Street (with some still going to Fulton Ferry).