Please explain in more detail “the momentum is the same” How would you know and how can it be adjusted if they are not? Thanks
On the CAB1L the L M H buttons under the cover. They set how responsive the engine is to the movement of the throttle. L will make the engine respond quickly to any throttle change, M a little slower response, and H the engine will slowly get up to speed.
Technically you should be able to do this to the created train as well (Page 24 of the manual). Are the engines already in the MU when you are checking their speed against each other? What I do is assign them to the train and then run them apart to confirm they are going similar (not exact) speeds.
From page 11 of the owners manual...
Tuning your locomotive’s performance Command-equipped locomotives
SET L M H SETTING MOMENTUM
The LEGACY system’s momentum feature simulates the labored performance of a real life locomotive pulling a heavy load. Press L, M, or H (located under CAB-lL’s removable panel) for light, medium, or heavy momentum. The locomotive remembers this setting until you change it. For normal (quick) locomotive response, press L. Get a feel for the difference in momentum settings. Select L, M, or H. Turn your throttle slightly and wait a few seconds for the locomotive to respond.
Note that on LEGACY/TMCC2 locomotives, L, M and H settings change the number of individual speed steps your locomotive supports. A setting of L gives 32 speed steps, M yields 100 speed steps and H provides 100 speed steps with added momentum.