Finding your own sound (voice)!

Hey wuz up folks? I have been playing the sax for about 9 yrs now. I am on a yanagisawa metal 7 mouthpiece with rico jazz selects 2m. I am trying to find my own personal sound. I notice that I have a pretty bright sound when I am playing. The thing is I have a feeling that I tend to sound like most other players around my skill level. I am trying to get my tone to the point where people can say hey that is Iceman (just using my username as an example). I am trying to get a sound between Dave Koz and Kirk Whalum. I have been playing along with people, but I don't know how much that is helping. People have told me I sound nice. I am just trying to get my personal sound to where I can be satisfied.