The hang,

must have for now. Until I realized the principle it took about 2 hours. Ifs works only once but would no longer put it down to him.
One must at some point, with me playing after a while no longer with my wrists. That is probably the hoped-training effect.
Those things make crazy fun and this Bewegzungsdynamik to feel in the hand is already a special experience.
Those things are so great that I (so stehts in the supplement if I'm not mistaken) can recommend to everyone except minors.
It makes suuuuuuuuuuuper much fun!

Except when it does not bring in momentum.
Then helps only practicing!