Goldberg extra300 profile

Profiles are notorious for lateral balance issues... I would start there for sure...

I have the same profile, and it harriers very well... Like someone else noted... It likes a higher angle of attack... Also, I don't use full elevator throw (50 degrees)... It's about half that (30 degrees or so)... Use the throttle to raise the nose, and relax on the elevator... You can buzz around all day in the Harrier...

Your profile is an underrated bird IMO. Mine weighs 4.5lbs with a TTpro 46, and JR 821's... I'm using a 6v Nimh 1100 pack.