Okay Turok007,
After way too many permutations, I've come up with three changes that should make the CX more liveley.
First you'll have to make a copy of the CX, name it anything you'd like, click on the copied CX and edit:
1. go to the aerodynamics tab and in the Aerodynamics Ref Area (sq. ft) change the unit of measure from 5 to 1
2. go to the main rotor tab and change the Blade Solidity from .067355 to .09
3. go to the coax rotor tab and change the Blade solidity from .067355 to .09 (same change as the main rotor)

Go fly and it should be nimbler... but it is limited.

Good luck

Scott