I created a lash-up with two MTH Railking ES44AC diesel locomotives. They run fine on my main track layout with no running issues. But when moving the lash-up to its siding, the trains run forward (and reward) in a jerking motion when the scale mph is below 12 mph. The siding has adequate power to it. When running individually in the siding, the locomotives run fine with no jerking. Has anyone also experienced this situation? Is there anything that I can do to eliminate this jerking?
Thanks,
Bo