Depends on what measures you are using as reaching perfection - as art pieces then the shinskuto competitions may be of some measure but as a weapon - another set of measures that may have nothing to do with the actual shape or appearance - Having collected all sorts of edged weapons for over 50 years and confining them to Nihonto the perfect sword may in fact be ugly but very sharp, extreme edge strength, exact length for the samauri using it, and effective in all situations for which it may be used ! My old Ieteda may not be the prettiest but a 3 body cutting test means it may be sufficient for which it was made