Here's a video of Norwegian climber Magnus Midtboe's training regimen, including one-finger pull-ups and one-armed pull-ups with weights. Midtboe has climbed up to 5.15b (Ali Hulk, Rodellar, Spain) and V15 (Blood Redemption, Norway). He recently finished the route Nordic Flower in Norway, which Jorg Verhoeven gave 5.14d. "I’m not sure about the 5.14d grade, but on such a beautiful route, I don’t think the grade even matters. Without doubt the most beautiful route I have ever done!" he said about Nordic Flower.