@hybridcalisthenics: If you have trouble holding on to the pullup bar, try this out. There's nothing special here. It's just a passive hang + different ways to train your grip. But grip isn't that complicated to train, and some of us groove with having a bit of variety we can use (an alternative would be monkey bars, for example). Plus it can be good to train different things. Have a wonderful day! #hybridcalisthenics