Bock nib question

[Empty_of_Clouds]

This is for those who obviously have a lot more exposure to pens than I do.

I was reading a review of a Leonardo Momento Zero which stated that the steel nib was by Bock and, because it was made from "harmonic steel", expressed a nice degree of springiness. My question, in light of this revelation, is whether all steel Bock nibs exhibit this property? Or is this something specific to this pen brand?

In asking this I am also considering the fact that Eboya pens use Bock nibs, although these are gold ones. So do Bock gold nibs also have a springy feel? (Eboya is still on my radar, but I would be buying direct from Japan rather than have any 3rd party fiddle with the nib).

Thanks in advance for any info offered.