Yep, change some of them weekly. I try to run 75 to 100 locos throughout the year. Each operating session I will log in the locos that are running for that session. I usually have 5 consists running during an operating session. At the end of the year I will know which locos saw some action.Nice looking. :thumbsup: Boy you make me feel lazy. You change the trains your running on the layout every week. Mine sit there for months before I change what I’m running.