Very good as you get used.by anonymous on 03/3/2023
I used both Grigri and ATcs. After bought feeding rope was a bit tricky. Now that I got used it's very natural and fast to feed rope, once you learn to avoid rising the lever, but instead pushing it forward. I prefer to Grigri because it's light and simple.
Lowering the climber seems bad as mammut suggests. It works better pushing with the palm from the back and at the same time rising the lever. In comparison to the jul, it's a way smoother to feed rope.