Adding the Aimoffset(using blendspace instead)

I am trying to set a 1d aim offset but I am unable to do so.

I am using AimOffset 1d to and adding blending adding it to the animation BP but it doesn’t work.

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As far as I have seen shooter games uses blendspace instead of aim offsets and uses the aimoffsets in local space instead of mesh space which is how aimoffsets should be used according to the docs. Have not tested it. But my question is if that’s how it should be done then why have a special class for them called aimoffset. Are there any better methods of using aimoffsets?

–Edit–
The shooter game method works but not this… Any reason why it might be so?