"And as we use RX20's the pile is clean far more thoroughly than with a wand,"
but you did mention this Simon.
Dont misunderstand me! I,m not knocking the rx and fair play to you for praising the tools you use, I do the same, but I fail to see how there is a significant difference if any than using a wand correctly,
"I think it is beyond dispute that the RX20 cleans carpet much more thoroughly than a wand. It makes 11.5 cleaning passes per second, "
I would dispute it that it cleans much more thoroughly
Geoff