In Allan Gartner's Wiring For DCC website, Booster Network Wiring, RECOMMENDATION #4-6: Run a Heavy Ground Wire Between Your Boosters:, the wiring diagram indicates cutting the two ground wires in the booster Loconet wires and adding a large gauge ground connection between the command station and the each of the boosters. (Yes he was discussing wiring Digitrax equipment which is what my club has.)
The stated reason is to prevent ground loops causing possible erratic behavior.
On Mark Gurries' website or the only mention of ground loops is in stating not to connect the booster network ground to house earth ground. Again, erratic behavior may result.
Larry Puckett, the DCCguy.com website also advocates the ground wire but does not mention ground loops. He did not mention them in his recent Model Railroader article.
Question: does the large gauge booster network ground wire and the parallel Loconet ground wires constitute a ground loop that may cause problems. Or are they just wires in parallel.
In the case of my club all the Loconet connections are daisy chained with a lot of intermediate connections. So the large gauge wire is shorter with no interrupting connections.
Stating you never had a problem with out disconnecting the loconet wires does not answer my question.