Model Railway Forum

Late answers may be too late to be of help to OPs but can be helpful to others who look in later, so not always a waste.

Hi Aussie,

Since you are building what looks like a reverse loop, you might find the information on the following link, of use.

Brian Lamberts Website - Electrical, Page 3

if you are unsure, Brian may be able to provide further clarification...

Regards,

Steve D.