Tim, use the TCS DCC's AZL4. You get the added 2 functions for the BUILT IN DITCH LIGHTS !!! Use some Pico/Nano LED's, they can be easily fitted below. Also: DISABLE the BEMF !!!! Their algorithm is HO based and they have told me that don't have enough signal from the Z coreless/can motors (only the MTL F7 and Märklin motors). On a poor running loco (DC test), it will severely compensate (e.g. step 1 becomes *REALL* fast all of a sudden). A sorta poor or binding loco will get surging. If the loco runs *really* well on DC, you won't notice it most of the time but at slow speeds, if you try to stall the loco or load it or it binds somewhere, it will really want to get up and go. Quite a few locos were tested with different decoders. You don't really need BEMF anyway. The pure PWM drive of any decoder should run all your locos nearly the same. If they ran well on DC (able to nearly crawl at low voltage), then they will *easily* run well on just basic PWM DCC (no BEMF). Set CV61 = 0 (no BEMF compensation), =2 (no BEMF but F6 toggles it On/Off) = 16 (no BEMF + Forward light dim when Stopped) =48 (no BEMF + Forward and Opposite light dim on Stop/Rev) Link to manual: http://www.tcsdcc.com/Customer_Content/Literature/Decoders/Z_Scale/AZL4/AZL4.pdf Link to Programming Guide (see page 16 for BEMF): http://www.tcsdcc.com/Customer_Cont...h_Manuals/Comprehensive Programming Guide.pdf
