i have three main loops, all with some route variations. i have one passing siding long enough to handle my longest train (11 car passenger trains with 2-3 diesel units). this means i can have four trains in main line positions with three of them in operation at once (i might be able to do four, but that would require more concentration than i am capable of these days). i have two shorter trains made up of operating cars only that are on sidings in the Portland Yard waiting for visitors. I can park the main line trains in positions that allow me to move the operating car trains onto the tracks where the operating accessories are. i have my recently constructed military train on a siding in the Winter Park Yard just waiting for an engine hookup.
currently, i have my three big passenger trains recently equipped with LED's and my Beer Train (all beer reefers) with the new 765 at the head on the mains.
i am feeling the need to put another steamer (probably the 844 or 267) at the head of a mixed freight into action, which means i would have to take one of the passenger trains off. this would probably be the Olympian Hiawatha, for no other reason that i must always have a UP passenger train (City of Portland) on the layout and i am so very fond of my California Zephyr. also, i suspect the smoke fan in the trailing F7 A unit is about to come to a screeching halt again.
this is not a small task. i would want to move the Milw onto display shelves, which means moving the UP and Milw heavyweights currently there back into boxes.
it is not something i want to do often and i know i leave changes waiting sometimes because i just don't want to expend the effort.
i know this probably doesn't affect guys like brian (PassengerTrainCollector) who can run 50 or so (yes, an exaggeration...or is it?) trains at one time, but i wonder how much others change their operating roster.
what do you do?