Ok that is the kyubi and PS. I am talking about PS itself.I am aware of that. But if you look at the kurama/PS combination Madara did, it has far more similarities appearance wise with the "stabilized" version than the unstabilized version. Plus the fact that the sword was capable of wiping out mountains(even without using the 9 tails bijuudama to help) when no other version(other than the stabilized form) has shown the ability to do so.