Sammie: Just got time to respond. Sound like all but this little oh, oh was the only problem in a great bunch of trips, keep up the good work on your Xmas express trains.

I would go with some of the ideas,
1. add some gage plates or double clamp gage rods.
2. double spike the inside of the curve to help the rail resist roll out. USe a hold down spike on the outside of the tie plate so, 2 inside and 1 out side and one outside enge of plate hold down spike ( Rattle Spike)
3. Grease the curve befoe the runs with the steamers, right now for our freight operations we grease all curves of 3 degrees or more once a month by hand. it helps with rail wear as we get some 6 axle power and cars in.
4. Grease the trucks on the tender in the center casting.
5. On the CCT we only use hardwood ties and all the curves get hardwood, 8'6" or 9' 7/9 ties

You said you were backing up, was this the 1st back up move shoving the train and was any air set while backing as this will add to the L/V forces on the rail. Did the high rail roll out or was it the low rail.

Is the rail curve worn and if it is, can you transpose it as worn rail tends to lead to gauge widening derailments. Also you could use some 90lb rigid switch rail braces and plates in the curves as curve blocks to prevent the rail from rolling out.

If you want to give me a call and if I am up in the area I will give you a call and we can go out and look around, if you are down near Stockton please give me a call.

Have a safe new years