What ever happened to sewn thread hinges?
I used 'em on my last DNU and they work just fine. My stab balsa was thin and soft, and after failing with a conventional hinge slot I decided to give thread a try. My Wife thought I was nuts sitting on the couch with a needle and thread and my STABILIZER, but it was kinda cool actually. I sewed in the normal hinge places using 6 - 8 thread loops. Found that you have to keep good thread tension otherwise the elevator has too much slop and will fall below the stab. I doped them up when finshing the plane and they're perfect!
EG