@layk Its not useless. Tucking-in your elbows together is a must in all upperbody calisthenics exercises. Squeeze your armpit cue makes it easier to accomplish.
@bibbigo The pullup problem is something I can relate to as well. Before I discovered this sub, I just tried to do as many pullups as I could hoping that this would increase my pullup numbers. I had no idea how progressions work.
@cewilliams In short, how many reps you have in the tank.
RPE 10 - Absolute max - can't do another rep
RPE 9 - 1 rep on the tank
RPE 8 - 2 reps on the tank
RPE 7 - 3 reps in the tank
@bibbigo I agree that RPE can be a bit tricky to implement. For that matter, percentages of 1 rep max can work but that is almost impossible to calculate correctly with bodyweight only exercises. That's why I went with RPE.
Dr. Mike Israetel is one of the most respected figure in the online fitness community. He is known for his volume landmarks for hypertrophy. You can find all the info related to his volume guidelines here and here.
He is not talked about much in bodyweight fitness or calisthenics communities...