Re: CBR954RR opinions
To answer your questions about there being any difference between the '02 and '03, yes and no. The colors are different, and the late '02 and all '03 bikes had the step down steering bearings. The '02 954 initially had tapered steering bearings, which made some people cry about the steering being too quick. So Honda went back to the ball bearings used in the 929.
Does it make any difference? Not really, but since you asked................
Either way get a damper, and ride it.
Oh, and yes it will be quicker than your ZX9. Less comfy, but quicker.