i have a reverse loop just put it up , control the polarity with double thro double pole with the +&- going to the center 2 post, chriscross outer 4post. A isolater on all 4 rails at the end. you figger out how to make it automatic,thats my problem {automatc} I would like to run my g scale trains with a phone, turn on anything on the layout from anywhere in the world,while watching on some gagett the younger kids don"t seem to be interested in trains today.Do you think that might sparke there interist ? Anyone know where i could visit a g scale working dcs layout?I have been trying to get mine going for the last 15 years. [HELP] looking forard to hearing from someone thanks Wildbill out