These films were recently released on blu-ray in Germany. They appear to have far less DNR than the animeigo release. No idea on the audio though. I went ahead and ordered a copy from amazon.de so it should be here in a few weeks. I'll report back. I'm pretty sure they don't have English subs so I'll have to use the subs from the animeigo release.

more info and screenshots here.

http://forum.cinefacts.de/237673-lone-wolf-cub-box-set-am-5-12-14-a-3.html

also a comparison someone did.

https://app.box.com/s/ufmfou5z00r445p1ld7o