Today I attempted the harrier, but there seems to be a problem. I cut throttle, slowly pull up elevator to get the nose up, add a little throttle to keep it from stalling. It's very difficult to get my plane stable in a 45deg angle. When I do manage to get it into a 45deg angle, the wings rock back and forth, sort of like protesting. And even when Im not doing any aileron correction, the wings keep rocking (swaying back and forth) by itself. It's definately not the wind, cos it was a calm day. Why is my plane so unstable? Is there something wrong with me or the plane? Do I need to adjust the CG back to do 3D manoevers? Im flying the Fliton Votec 351 with OS56alpha 4stroke. Isnt this supposed to be a 3D plane?

My 1st attempt on video here. 4:05mins onwards.
http://www.youtube.com/watch?v=_LBdycAnXhk

Thanks for your replies.