Originally Posted by palallin:
As I get used to this new-fangled TMCC set-up, I discover quirks.
My small layout is Atlas track. When going over the switches, my one TMCC loco (Frisco 4-6-0) "stutters," in that it will jump ahead for a fraction of a second and then slow again to its normal speed, sometimes four or five times until it clears the stitch. It does this only when moving slowly--like in the yard--and this behavior is sometimes accompanied by sparks.
What do I need to do?
(1.) Clean the switch and associated pick-up rollers on the engine. Rerun and see if this cleans-up the stutter. You may also want to add a very very small amout of lubicant to the pick-up roller. As an engine with (2) pickup rollers proceeds across the switch, there is a point where only one pick-up roller will supply power until the one crossing the dead rail section is again powered. Hopefully this will correct the issue. It becomes more complex.