I know of it being done, and that's what I was told (regarding that specific airframe). I don't know how many other variables were involved, just that it helped dramatically. Take that for exactly what it's worth. I've done the same expirements with my own designs and found the same thing to a small extent. At some point it will snap like a bandit, but it's touchy to get it locked in straight and level (less area=less stability on that axis). The weights of my stabs was the same and hence my Q. I don't actually understand all of what I've "discovered". Which is why generally I don't go too deep into aerodynamic discussions anymore. Way too many opinions and too many variables. I'd trust Bryan's advice on trimming for certain. He hasn't lead me astray yet!

And yes on a Symphony. I'm not recommending that mod, because it does sound like you are tail heavy exactly as Bryan and Troy describe. I would fix that before I did anything else. Just try it. Adjust the throws like Troy said...make SURE you don't have too much rudder, that can kill you and you'll chase your tail forever.

-Mike