I was thinking about how to gain more DF on the FW and came up with the idea of enlarging the cascade (think thats what its called) to become a full size wing. Heres a simple cross-section of what I mean:
The left wing is what we usually see. The right side one is my idea. Is this legal and what aerodynamic disadvantages are there to this system. I am basing it partly on having extra leverage by having the aerofoil a bit further forward as well as having an extra wing. Opinions please.
Thanks