A few images should tell the story.

Carbon tape applied to top and bottom. Laminated wing cores drying overnight. Resin smoothed out with alcohol applied to the retract pushrod foam tunnels to seal and provide a running surface for the rods. I might add outer shafts to the rods to keep the spacing snug but probably not needed.

I think I have about 100 lbs on it - perphaps a tad too much

David.