I am not sure if anyone else noted that, but the original power jelq described in the beginning of this thread.looks like a perfect hanging device as well (I don’t really have it yet, it just looks like it to me). If you put some type of rope around the handles and connect the rope to the weights.then the handles will squeeze harder and harder depending on the weight.thus should provide a sufficient grip, and it seems that you will be able to hang rather comfortably.
Just my 5 cents. :)