Brass screw tweak, seen in Virtual Dynamics video.


I am curious if anyone has seen and tried the brass screw tweak as seen in the Virtual Dynamics "Oddiophile" videos?
In particular, I am interested in the brass metric machine screw with the insert. Sounds rather interesting. Could anyone offer any insight or relay experience? Are any manufacturers using this tweak?
The address is below. Episode one is the first tweak, episode number six is the advanced version, the one I am most interested in.
Thanks.

https://www.virtualdynamics.ca/oddiophile-episodes/
fotis_k
You try it and let us know if you get the results that he mentions in the video.
Have used brass screws and inserts for 10 years or more. Non ferrous materials and brass in particular sounds better. Brass is the metal of music. Tom
Have had customers request non ferrous I have not heard or measured any difference in sound quality for the better using non ferrous fasteners. I had loudspeakers that where the same except one pair had non ferrous fasteners. Tried it on a few different designs. Still I will experiment more with this.