My layout (Rachelstown and St Stephens Green) is wired for three controllers as DC through DPDT centre off switches. This is for the future if I choose to convert to DCC. It would then be operable as DCC or DC at the flick of a switch, literally. However chipping approximately 140 Locos to convert to DCC is financially out of the question, having said that four already are fitted with Chips. So possibly some more my be done to have a DCC running evening/weekend. TDR