These two partner assisted pull-ups are a great option to ensure full-range of motion and individually based assistance.
Most lifters struggle with finishing the movement by getting their chin over the bar. Although many use bands for assistance, a band won't help you where you need help the most: at the top. Also, partner assisted pull-ups allows the person that's assisting to dictate how much help is needed.
It seems that in every family there's always a black sheep, someone who just doesn't quite fit in with the rest. It might be your crazy Aunt Sally who's run off and joined a cult, or maybe your family has its own cousin Eddie of National Lampoon "Vacation" fame.