Chris,
When i checked my bird, before i flew it, if i remember correctly, the wing and the stab were at 0-0. Evidently there is some other issue with this plane. I believe it could be because of the short tail moment. Maybe Great Planes designed it at 0-0, but it sure does not fly that way. Could be that is why pattern planes have such a long tail moment. All planes are different, some need to be at "0", others need incidence, some negative, some positive. I guess you could say "its the nature of the beast". All i can tell you is with my front of the wing down, that half degree, it flies perfect.
I guess you could add nose weight, that would help it fly with less elevator trim, but i prefer to have the CG where it belongs.
Hope this is of some help to you ....... Good luck, Paul