I have both a Bachmann Hall, 32-004 Sketty Hall, and a Bachmann 56XX Tank, 32-075, both are using Bachmann 36-553 Decoders on the Bachmann Dynamis control system. The engines run fine on DC but on DCC jerk and stutter and are basically useless unless i want them running at full speed! I've altered CV's as recommended by Bachmann and they still won't work . I was wondering if anyone had any advice please as I feel like going back to DC at the moment!