Dorin this wing is only and experiment in combining Bob Hunt's the lost foam system and my shell construction. The ribs are from a Hunt lost foam jig if i was making my own i would use 5 ribs per panel as the SHARK uses.
You would be surprised at what a Shark wing weight 9.5oz per panel that's 19oz for a finish wing and the model weighs 60oz ready to fly.
The carbon was used as all other parts (stab, fuse,flaps were made with carbon cloth and i wanted to build one with this material.
Dorin for me the gold standard is the Yatsenko SHARK and the new Sharks wings are made with molded balsa shells that include the tip as shown in my photo with 1oz/SY glass cloth inside and out, with 5 1/16" balsa ribs.
Heavy is in the eye of the beholder. i want my model weight at 62 to 65 not any lighter,at 720 SI my wing loading is comparable to most Nats planes.
Included Photo of another use of the molded shell construction to build a built up wing.
Dorin working with the balsa and glass cloth the tips require multiple layers of glass cloth for stiffness i have already done this,as you are making separate wing tips this does not apply to your method.
Dorin your work is fantastic please keep posting your work its very informative.Dorin i added a third photo showing the balsa with glass cloth at the time i was making carbon fiber mat and glass cloth tips,now i mold in balsa and glass cloth
Jose Modesto