My grandfather was a mechanic for the Central in the electric car shops at Harmon,....yes, it’s a fact they had issues with the S class, even some tragic ones....these issues were figured out, and the S2’s were much safer.....underpowered, yes, but safer...T’s replaced a lot of chores that the S motors did, and S’s got relegated to lessor jobs, but nonetheless, they were still called upon from time to time, to run trains out of the city to Harmon....this is fact, I have video of an S2 pulling the Century in the mid to late 50’s out of GCT ....consist included some ATSF sleepers.....there was no “set” electric that only did these shuffling jobs as grandad called them back and forth from Harmon to the city....up until the reliable and powerful P’s showed up, you’d see a host of T’s or S’s doing the job,...all depended on what was available to be dispatched to a job....if the T’s were all either working, or inshopped for repairs, they’d toss a S out on the line in a heartbeat...as mentioned above, even R’s would come out of the west side line to be called up for passenger duty when traffic was heavy ....ie; multiple segments.....but R’s had to coupled to a steam wagon, as theses had no provision to make needed steam for passenger duties..
as far as what’s available on the market, obviously Lionel’s S’s are out there in good numbers, as well as MTH’s P motors in a couple different numbers for both manufacturers......3rd rails T motor is an elusive creature that has even evaded me, .....and I model Harmon....
hope this clears things up, everybody that has posted suggestions, history, and ideas have all been spot on, so you’ve got a good wealth of info right on this thread....I currently run both S’s and P’s as I don’t have a T of my own at the moment, but I’m on the hunt....2 rail brass models are even harder to come by....the most accurate P I’ve seen was done by Overland for the CUT but it’s set up for overhead service, not 3rd rail, so to make it run along the Hudson, you’d have to convert it to 3rd rail operation just like they did at the Harmon car shops....
Pat