Amazingly I had the exact same problem with a Railking MP15 switcher this morning! I cut the wire and put the engine on a toggled off track. I flipped the toggle to on and another engine I had running immediately stopped and my RRampmeter went crazy. I shut down the track and removed the other engine. Put the Railking engine back on the track, flipped the toggle on and RRampmeter went crazy again. I could call up the engine on address three and start it up but had no speed control at all. And what little bit I could control was really rough. I went ahead and installed a switch and it works great in DCS mode. I'm using a Digitrax dcc system and have had no problems with any of my MTH premier engines. I posted in the dcc forum to see if any one else has experienced this. I plan on converting most of my engines to TCS WOW Sound decoders but was hoping to just use the MTH decoder in engines that aren't part of my operating scheme. I hope all of the Railking isn't like this!
Joe Shipbaugh
