It does not matter... :)))
My promise: flying wing must be build clean and simple as possible. Any construction or waste aerodinamics perversion.
As you see, possible to buil using NACA foils without elevon deflection. "
NACA2410@Root, NACA0010@Tip, linear transition from 1\2 span.
2 degree linear twist @1\2 span to tip.
2 m wing span
1650 g TWO
Cruise ~15-17 m\s
This wing I buil on 2001 and similar wing design pretty clear discribed in RCSD.