Are you testing your damage in a trial battle or using motocal, or just relying on the numbers the game spits out for you on the weapon grid? Because going by the grids you showed before I find it hard to believe that the SR Seraphic weapons don't have a slot, and the in-game damage calc is notoriously inaccurate. Like, last I heard it didn't even factor in the Blessings at all and I don't know if they've updated it since.
- - - Updated - - -
Also I'm still uncertain if Fenrir is a girl or not.