Reversing Wye on the cheap

Just checking if this will work. Consider a Y junction on a DCC layout.

Code:
-----------
  \     /
   \   /
   x\ /x
     |
     |

Normal solution would be to insulate at the points marked 'x' and add a reversing module. For DCC, could we get the same effect by just using a DPDT switch attached to the wye point controller (e.g. LGB supplementary switch 12070) and have it reverse the branch polarity every time the switch is thrown.

Caveats:
  • Need to make sure the wiring is right so the polarity matches the switch branch
  • Power will be cut briefly while the switch is thrown, so a stay-alive might be useful
Will this work? It seems to get all the benefits of a reverse loop module without actually needing anything more than a toggle.

Could the same technique work for a conventional reverse loop, as long as you are willing to always throw the points and not rely on push-through?
Try Gartenbahn Profi magazine issue 4/2022 pages 64 to 68 inclusive
 
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