Independent wall tag centred off wall not on walls edge

I invoke the tag all not tagged command for walls and the tag without a leader is centred and on the edge of the wall.

When i use the independent tag command it is centred and not on the edge of the wall. Is there some magic sauce, the tag all not tagged can do and the independent tag is inferior version or am i missing a step?

I can move the tag after creation to the wall centre using the IndependentTag.TagHeadPosition, do i have to get the wall thickness half and do some offset from the walls location line normal? Any posts on this?

I use this invocation of the independent tag method...

IndependentTag.Create(document, view.Id, wallReference, true, TagMode.TM_ADDBY_CATEGORY, TagOrientation.Horizontal, wallMidpointXYZ);