MTH does not recommend running in this manner in their directions.
Dave,
Just to clear up this false statement as the DCS users' manual, 3rd edition (pages 65 & 66) I have clearly states how to setup and use the Z4K tracks. I had the Z-4000 Remote Commander System before DCS came out, so I already had the receiver to work with the DCS remote. And Barry hadn't published his first book yet.
Not to discourage anyone from buying Barry's book, as it has much more in it than the MTH users' manual. His book shows how to set up more than 3 Z-4000 transformers than MTH shows in their manual as one example.