Now, I said it "might", only because of the rotary action. But if you know how to use a wand, and the high flow and say a slotted
glide, the wand may outclean the RDM because it will flush deeper.
The thing with the RDM is that its powered so it would take less physical work.
Also, a RDM vs an
RX20? Hands down:
RX20!
Assuming an experienced technician is using the machine!
The SOA seems to neglect this point.