ORIGINAL: Montague
My eye says that the LE of the wingtip will be really far forward, but it's hard to tell from the picture.
What you want is also going to depend on the airfoil a little, and don't forget to adjust the aileron reflex during flight testing.
What's the wing area?
I can take a pic at another angle of the plane if that will help?
My attempt is at a CLARK Y airfoil - what do you mean by aileron reflex? ( Aileron position as adjusted by the cleavis? )
I think the wing area is around 450"
Steve