You're on the right track. My Becker usually ride behind my neck, the handle is below the collar about 2 inches, and is part of my shoulder rig for the G23. My brothers have carried throwing knives this way for years, and I find it to be the most comfortable.
I also have a Mernickle shoulder rig and the becker is pancaked with the G23, loading out the front just past the top corner of a dress shirt pocket at the same angle of the photo you show here.
When I wear it around my neck to the front, I have a very small alligator clip to stop the constant motion and swing, and it is covered with a small slip of fine goatskin, not the monster chuck of plastic that shipped with the knife.
I have web, leather, and a team of sewing machines at work. If you'd like to try an idea, send me a PM, I'd be glad to help.
I also have a Mernickle shoulder rig and the becker is pancaked with the G23, loading out the front just past the top corner of a dress shirt pocket at the same angle of the photo you show here.
When I wear it around my neck to the front, I have a very small alligator clip to stop the constant motion and swing, and it is covered with a small slip of fine goatskin, not the monster chuck of plastic that shipped with the knife.
I have web, leather, and a team of sewing machines at work. If you'd like to try an idea, send me a PM, I'd be glad to help.