Only Bump seems to be showing the concavity I'm looking for (not with the same map, I use an inverted version of the B&W spec map you see in the nodes setup).
But the moment I switch to Normal (the nodes setup below), not only the concavity won't show, but the glossiness is gone!.
This Bump is not too shabby, but Normal is supposed to be better. Plus not knowing why is not working is killing me!
Should you want to inspect a simple blend file I made, by all means!
Thanks in advance guys!