The ability to transfer torque is the only hold back. Not saying it will not, because I have no experience with this style tranny. I'm just curious as to the amount of torque loss through the tranny. The ability to take a beating, and ability to deliver torque to some degree - is hinged on the type & quality of materials used to make it!
I would love to get my hands on one to disect it. That's the only way to really understand something like that!