Im kinda new to the hobby, and im in over my head. I just installed a aluminum head , outer shaft ,and swash on my CX2. I powered it up with body off, to make ajustments to swash and once it took off it started shaking violently side to side. It was 2ft off the ground. I did notice at a little less1/4 throttle only lower blades got power then added more throttle and top blades started spinning. Is this normal? Anyway,I thinking its maybe the flybar ( stock )causing the shaking? Should i put the body on when testing and keep taking off to adjust swash? Its also seemed to nose down when taking off as well. Thanks in advance for the help