RE: Hawk sport.....
You are gonna love it. It is not a Hawk Pro, but a good little heli in its' own right.
Going from your Walscara to the Sport is like going from a soap box derby type car to a Honda Civic.
Take your time to set it up properly and it will fly very well and take you from hover to 3D.
I would get the feathering spindle collars from the Hawk Pro as soon as you can once you are into aerobatics. They tighten up the damping, and takes up the purposely designed vertical float (that makes for softer feel for training) in the spindle, resulting in a more linear collective relationship from right side up, to inverted.