Recommend best airfoil for FPV flying wing.

Hey! ;)

Recommend me please best airfoil fo FPV flying wing:

Root chord: 15" 
Tip chord: 7" 
Sweep: 15" 
Span: 55" 

Need stable, efficient, good flyer in slow speed.

I was watching on - MH - 45,61,62, NACA 0014, SA7035. Or is there any better choice?

Thanks.

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