The other day I was daydreaming at my job, and thought about how you could use a climbing rope to help your HSPU's, maybe even get close to a one arm HeSPU. It is essentially an inverted rope climb, but not in an inverted hang.
You are in a handstand on the rope using your legs for balance, and one hand will be below the other. You could not place the upper hand too far or else it would be a pulling exercise for just that arm.
Anyone care to discuss this?