When the McCloud tested the ALCO Century 415, ALCo suggested that they buy three and use them on this schedule: two would run to Burney and one would switch the McCloud yard during the day, and two would go to Mt. Shasta and one to Lookout in the night, as log traffic had switched to trucks. Although the C-415 wasn’t bought, the schedule was used when the SD38s were acquired. The fourth was used as a backup or extra power when needed.