Alex, I have to tell on myself, a bit. Forever, I've not uniformed primer pockets until after the first firing as I believe the pocket takes a 'seat' that first hit. Then I just run a carbide uniformer in and use that to clean the pockets after. I made some new brass last season (30BR Lapua) and for some reason, never uniformed after that first firing. I seat with an old Lee round primer seater and the primers felt fine. Out of the blue, I started having an occasional misfire with Fed205M's, which I've used forever. I changed primer lots with no luck. Tossed in some WSR's and had the same issue intermittently. I finally noticed that the face of my uniformer wasn't flat against the case head when cleaning the pockets....light bulb goes on albeit dimly.
I power uniformed the pockets and took a bunch out of the radius. Primers now had that old familiar bit if 'squish' when the anvil preloaded. No more FTF's.
When I made some new Lapua 30BR brass for this season (new barrel), I uniformed as part of the case prep. I was surprised how much radius there was in there.
Maybe brass dependent???
Anyway, I agree that we agree. Reminds me of the Dave Mason song but in reverse.
As always, good shootin'

-Al