Oh, I know full well what a RADS configuration is, my point was just that if you are using it with the footloops hanging from the upper ascender, then it is a sit-stand system without mechanical advantage.RADS is taking the down rope after it goes through the descender, typically a gri gri, putting it through a pulley attached to the Microscender, or usually a hand ascender.
The belay backup sounds more like what the Shunt does.
That's a nice clean set-up. How does that bungee work on the knee ascender? I see you have three little rings on there. Do you double it?