Jim,
According to the DR5033 manual?
The DR5033 is an H-bridge booster with various connection options.........?
I thougt common ground wiring referred to using a common track across all boosters not common power supplies.
Important! The DR5033 must not be used in systems that operate according to the common ground principle. This can lead to the destruction of the booster and/or the central unit.
You can configure the DR5033 from the YD7001. Just plug them together on the Loconet B bus and click on the Loconet B option on the YD7001 app. LNCV value 3 needs to have bit 6 turned on in order to turn off automatic polarity reversal.
Oldngrey