Bren & bac help me understand if my interpretation of the recent post cartoon is even close to accurate: It seems that when we talk here about Sig P365 striker drag it is an issue of great concern. However if we talk about G43 striker drag it is "Who Cares? & So What?" I'm old and my cognitive abilities are not what they once were but I am trying to learn what the "Who Cares? & So What?" means regarding this subject.
No, they are both issues of "who cares" and "so what." It's a very popular subject among newbs on the internet. Not a problem in real life.
BTW, the "slot" shaped marks on the primer of Glock-fired brass and "Sig-fired brass are 2 different things. The Sig has a round striker tip, so long marks would actually be caused by the striker dragging. A Glock striker tip is actually flat and is supposed to make a slot-shaped mark on the primer, so if you are siagnosing your "primer drag" from the shape of the marks on the primers, it is probably only the Sig that is doing it:
Round firing pin on left, Glock striker on right.
Do you have pictures of your primers?
Either way, I see no evidence that it is a problem. Internet hysteria.