Thanks for all your advice. I've come to the conclusion that my plane just sucks at 3D. I managed to find my exact model on rc-sim.de

http://www.rc-sim.de/dl_engine_eng/c...216b23cb9bab08

I loaded it onto my Aerofly Professional Deluxe and it just totally sucks at 3D. Then I tried the Andrew Jesky electric version of the Fliton Extra 330s

http://www.rc-sim.de/dl_engine_eng/c...216b23cb9bab08

It was SOOO easy doing 3D. I was hovering, doing harriers, rolling harriers, inverted harriers.........piece of cake.

I dont think there is any point in modifying my plane to make it do 3D. I will just buy another plane that can do 3D. And for those that have seen the promotional video of the Fliton Votec351 doing 3D, all I can say now is that it is a hoax. Cut scenes & slo-mo make it look like it can do 3D, but in reality the guy flying it also cant hold a proper hover for more than 5secs. LOL!

http://www.youtube.com/watch?v=Kmz76KxsLP8

Thanks again for all your advice. RC universe rocks!