Reply to "Z4000 on two separate loops."

@fast freight posted:

One thing I've noticed when running a train is when the occupied loop is set to 15 volts and the unoccupied loop set to 15 volts, when the crossover happens the now occupied loop drops to about 13 volts, the train slows and the now unoccupied loop the volts increase to about 17 volts. 

I suspect so, the voltage drop when you have a load is normal, it happens with all transformers to some degree.  If you set the voltages on both loops without a load to be equal, then you'll achieve the result you're looking for.