Board Thread:General Discussion/@comment-25801533-20160531211643/@comment-957629-20160531214453

Coolishy777 wrote: We can surmise that if Isshin can use this technique then so can other soul reapers, Urahara included. A Zanpakuto called Zangetsu and a Zanpakuto called Engetsu are entirely similar, representing the spirits of a father and son who are biologically and spiritually related.

Provide proof that others can use it. This thread deserves to be closed for that completely incorrect and speculative statement alone.