I have two of them, one for hunting and one for 3D.
As already said, cam timing is critical as is string stop position.
I shortened the rods on mine and put a little memory foam in the holes before re-installing.
The 2010 bows stop is softer rubber than the 2009 version.
I swopped mine around as I figured the softer, quieter one was better off on the 2009 hunting bow.
People at the club keep telling me how quiet my 3d bow is (but bear in mind people over here mostly do not install any sort of noise suppresion on their bows as there is no bowhunting).
My hunting bow is quieter than the 3D one, easy on a par with my other bows, but I have whiskers on all cables as well as the string on the hunters.
Kev