Interestingly. Based on a couple photos, it appears the central pipe is NOT just a tube.
there are clear vertical milling artifacts that parallel the windows. AND it appears the set screw hole goes clear to it.
observe:
While difficult to make out, the structure clearly is not a view of the opposite struts of the window. It is ON the central pipe.
I will be adding this feature. I am guessing it parallels each window slot but that is an assumption based on what I see.
there are clear vertical milling artifacts that parallel the windows. AND it appears the set screw hole goes clear to it.
observe:
While difficult to make out, the structure clearly is not a view of the opposite struts of the window. It is ON the central pipe.
I will be adding this feature. I am guessing it parallels each window slot but that is an assumption based on what I see.