RE: Blade CX-2
Oh yes, very much so. If your hobby store doesn't have the aluminum upper rotor head in stock, then go ahead and order you one. You WILL break it!
The servo motors have arms that the links attach to. Those arms have holes in them that you can attach the linkages to. Stock is in whole #4, I moved mine up a notch to #3. I wouldn't recommend that to you until you get used to flying it!