Good post with the K-Line comparison, thanks. I have K-Line #5344 with MTH PS2 and smoke in place and it runs beautifully. Can reprogram the sound and adjust the smoke output easily. Its rumored that the K-Line's motor can be inadequate in some situations but I don't put a heavy consist with it to be safe. Also installed the K-Line 'proper' scale pilot that was available which gives a vastly improved appearance over the undersized units pictured elsewhere in this thread. Here it is with the Commodore Hudson w/small wheels to give a comparison.