Hi Matt! Sorry for the long duration since my last post but…been busy. The only recent developments I’ve seen on the Stone Mountain Georgia line are the changing of power lines from the old poles feeding the old wayside signals to the new poles feeding the new wayside signals. Also, they have already installed the electric switch locks at both ends of the Avondale yard and have readied the boxes at both ends of the Stone Mountain siding for transition to the new PTC overlay control system. However on the Abbeville subdivision in Tucker they have replaced a T-20 hand throw switch with and electric power switch for a siding. The Tucker line new boxes for PTC have Verizon dishes installed on them. I wonder why the Georgia line doesn't and if it has something to do with the nature of TWC/ABS for the line or/and the Pulse Coding that is used? Theoretically they could stop the trains for emergency conditions via the pulse code in the rail going into the cab rather than by the roof mounted units receiving signals via GPS. I will send you pictures as I obtain them.