I have some questions/ concerns about how interface material is generated in Cura. What it looks like right now is that the interface is generated at a constant distance in z off of the overhanging structure. Here is a picture of what I mean.
When my interface layer thickness decreases to something around 0.5mm, the support interface completely disappears on shallow angles.
Here is a link to the part I'm using. Let me know if this all makes sense.