I'm setting up my first diesel using an LM-3S-G with on-board battery power. This is my first opportunity to use the two motor outputs on the LM. I thought they might just be included for wiring convenience, but after running some tests I think they might be two separate drivers with some load balancing smarts.
Before installing the LM, I ran the loco using a basic 2.4GHz R/C system with a single ESC output tied to both motorized trucks. The loco ran good, but at very slow speed one truck would stall occasionally making operation jerky.
I Installed the LM with and each truck wired to it's own Motor outputs. I also have Low Speed Enhance enabled. Now, the loco will crawl so slowly you can barely see the wheels move! Smooth as silk!
I'm putting together a list of things to discuss with Tim Ring at some point. This will be one of my questions!