I have returned to model building after 40 years and am dazzled with the electric planes and gear. I recently bought an Ultimate EPP Bipe from Northeast Sailplanes. This is my second kit (since the mid 1960's) and my first foamie. The kit is going well but I have a question.

http://www.nesail.com/detail.php?productID=2922

After mounting the wings and cabanes (no diagonal braces yet) I noticed that the wings are not straight. This is because the pre-assembled fuselage/center cabane assembly is 1/2" taller than the outboard cabanes. I thought the two wings were suppose to be straight. I will soon install the diagonal CF braces which will fix the position of the wings. Should I:

a) make the lower wing straight & the upper wing inverted dihedral
b) make the upper wing straight & the lower wing dihedral or
c) cut the fuselage cabane loose and shorten it so that both wings are straight?

Thanks