Hey Union Models,
Great looking Aurora! Your wing weight is acceptable as you've seen from the data above. If you were competing at the FAI F3A world championships then, yes, a lighter wing might give you a little edge. The effort involved in shaving a few ounces of weight is considerable (honeycombing, very minimal application of adhesive, carbon fibre reinforcement, etc.) may not be rewarded with noticeable flight improvement. I was obsessed with saving weight (building competitive pattern planes) back in the 80's & 90's, but now I fly mostly for my own enjoyment; so straight and 'acceptably' light are my construction goals (no more honeycombing!!!).

-Chuck,
I've never used a dihedral brace constructing a foam wing, just the traditional butt gluing the cores then reinforcing with 6" wide fiberglass cloth (4-6oz cloth). That's about 30 pattern wings. I've had one failure at the center section (details in a moment) and that includes several high speed vertical 'landings' (ok crashes...) The wing that failed at the center butt joint was on a Mistress. I was flying in 105F temperatures and had flown several flights consecutively. There was very little clearance between the bottom of the pipe and the wing - actually to get the bellypan to fit I had sanded a small trough down the centerline of the wing. At the end of the 4th flight as I flying past to check that the landing gear was down I turned away from the runway and saw the wing slowly folding up. I tried to roll inverted, but was too low. The impact speed was pretty low, but the damage was pretty extensive to the fuselage. The wing had folded because the epoxy used on the center section reinforcement had softened enough to allow the failure - it was still soft when I examined the remains.
Regards,
-Will