I use the Digitrax DC210 8 amp system on my 3-rail layout, actually prefer it to DCS or TMCC. If your engines are premier all you have to do is flipped the switch. On railking you have to cut a wire inside to enable DCC mode. I use Tsunami2 decoders in all other 3 rail engines. The default MTH functions are not where everybody else's decoders put them, does take some getting use to. Can also use with JMRI, but will most likely have to add decoder info yourself, trying to read decoder type may not work.