With 11 oz on the nose and the heavy tail wheel I'm perfect upright and inverted. very minimal down stick inverted and no sudden pitches with throttle reduction upright or inverted so I'm convinced the balance is right and we'll just have to live with the nose weight.
Far as other problems, I hate the covering that Modeltech used. I've got almost 60 flights on it and nearly every time I fly it I have to repair covering that keeps coming off. Last weekend the blue came off the glass wing pan (think I'm just gonna paint it rather than try to cover it yet again) Crappiest covering I've ever seen.
I'd get rid of it if it weren't so much fun to fly.