Sandy Hogan horizontal stab spar

Bob's Sandy Hogan has such a huge horizontal stab, I suggested a sandwich of balsa with a "filling" of carbon fiber tow.
Bob writes: "I made the Hogan's horizontal stab lower main spar per your suggestion. It works great. It will not bust or break! The Dave Brown carbon strip excellent."

Here's a photo Bob sent with a teeny sample of his lay-up.

Carbon fiber/balsa sandwich