I know that but if newbies think its ok to use shinsakuto because guys on Nmb do it a whole range problems are likely to happen.
I get it , I got a low quality shinsakuto years ago because it was very cheap and used it for iaito for a little while but now I think even that sword deserves preservation, just my opinion.
My Sensei is Japanese and thinks repro swords are suitable for cutting and iaito for iaido.
I also understand that sword smiths make part of their living making swords for this reason but I'm not sure Nmb is the best place for this, again just my opinion.
F