Hi !
When I tried to do vertical pulling ( chinups in this matter ) the right way - almost no momentum and from a clear dead hang to top and pause at the top for 1-2 sec - I noticed that they were very hard, or on the other hand I am very weak.
Have you guys experiencing the same when you started with proper vertical pulling ? (chinups, pullups )
Or maybe I need to work on the movement patterns of the pullup so i get used to the movement.