Heres my copterx 200 with the new V2 main shaft, also using the tail assembly from the trex 450...Works great. Motor and esc are stock. Using a 1320 thunderpower lipo, larger wider plastic blades, 2100t logitech gyro. Head was levelled using a trex leveller. 4 towerpro 9g's servos.
http://www.youtube.com/watch?v=ickmcwslEvw