This came out of a rather lengthy thread on another one of the forums, that basically actually penetrated the concrete in my head, in terms of how a powermaster can control conventional engines. I have a further question that is probably a *duh* special, too. So if on my layout (well, the one in my head at this point) has two loops that can run independently, if I put one powermaster on loop 1 and a second powermaster on loop 2 , can the legacy remote address them independently, so if I wanted loop 1 to run at X voltage and loop 2 at Y it would work? Eventually I plan on converting as many of my engines (not that I have a lot) to TMCC via the ERR products, but to start with I likely will have mostly conventional runners. Obviously I could do the same thing with conventional block control and use the arms on the transformer, but would like to be able to use the remote to control the engine speed, more fun.