Questionable line set/TIP

[rbtree]

Yo-yo and RADs are the same system. It's 3:1 if you only pull on the rope coming out of the Grigri. The normal use is 1:1 which is grab the ascender with one hand, stand up on the footloop, pull the the rope below the Grigri with the other hand at the same time you're standing on the footloop. After you stand up repeat the cycle again. The Grigri captures your progress so you can sit back and rest at any point. The ascender doesn't need to be tethered to your harness, it's better if it's not.
-moss

True.

I don't ascend using RADS often, but have modified it, to use a foot ascender below the pulley. Then just advance the upper ascender (no foot loop needed) in order to keep the mechanical advantage loop in the system. foot ascender leg does all the work, and it's easy if a tad slow. By the way, I have an Edelrid Eddy, which works well.