I'm on the way to the field.
The unit is very comfortable you can only see a slight bit of black when you look to the side at the adjuster.
The actual unit weight is 17oz when I support the center of the unit and let the box lay on the scale it is measuring 7oz. I used seamless thin walled aluminium to hold the box. Very easy to achieve full deflection but, I did have to loosen the Rudder off quite a bit. I'll let you know how it goes
Actually I built it so I light that I made two supports. He will have an extra one just in case