Ahhh, simple & light construction! I usually seem to do OK in the lightweight aspect, but the simple part....nope! Too many sticks and little tiny parts.

I was worried about low speed elevator response during the design phase of my 'gyro so I used a thick, airfoiled stab to give more lift when needed than a slab surface. I used an Eppler E168 airfoil (12.44% symmetrical) and it works GREAT! Here's a pic: