Hello Mark

I have been practicing the rolling harrier on the computer and have got pretty good with it. But when I Fly the rolling harrier (Real Life 84 in Wildhare Hare Edge w/DA 50) it seems to be real sensitive on the elevator and rudder, unlike the real flight. My plane is set up so that it flys without any down when it's inverted. Could I be to tailheavy? Where should the CG be set to fly this?