I finally installed one of the new TCS WOW sound decoders in my On30 Forney. The sound is awesome and speed control is fantastic. I might be looking at converting the entire fleet over to WOW. https://www.youtube.com/watch?v=iEseYVY32jo&list=UU4CSsv_ZWGNNu6PuL0KeU6w Short video of the Forney on it's first run.