Have you used AC blade in some SE razors ?I have the same suspicion. I don't have a photo of mine loaded with blade at hand, but I try to illustrate with two images (blade and kamisori) how I load the blade. I do that by hand using tweezers to get the blade in; I have three single blades at the moment and haven't yet ordered a full pack, so I can't use the injector mechanism. I basically place the blade with the non-rectangular hole towards the handle. I tried it the other way, but the blade has overhang in the front if I do. Once the blade is loaded it looks like the first picture, with the grind of the blade slightly sticking out. Am I doing it wrong?
View attachment 1977059
View attachment 1977060
Maybe you are like me - AC blades are not for you. I can shave but shaves are not comfortable. I have used Feather Pro and Schick Proline - both give mediocre shaves.
Then you have Feather SS. I have used SS clone. It was disaster. Feather SR was better.
I have used modified A77 and Cloud-Cut blades with great success. But this modifying is not for everyone.