The horned-ball or pegged-ball from NWSL arrived yesterday and it works great (P/N 481-6).
Thanks to help from several of you and others, these two scale ACL SHS SW9’s have been successfully converted to hi-rail wheels and AF KC’s, upgraded to LED directional lighting (instead of their original GOW bulbs), as well as enabled to run as one engine thanks to a tiny detachable four-conductor flat cable installed between them. That allows them to leverage 16-wheel pick-up and use the reverse unit in one engine to control both at the same time. They look and run very nicely together. S-Helper engines are great, but their reverse units don’t stay synched very well when run as multi-units. They tend to get out of synch and fight each other, so cabling them together helps. [American Models reverse units for some reason are more dependable/predictable.]
PS I realize they could be made to run with TMCC/Legacy or DCC and achieve the same or similar multi-unit results, but the owner of these engines runs their trains conventionally and requested they be set up this way.
David Horn