I shot the Iceman, Black Ice, and Stud on Saturday and I can say that I can notice the difference. The Stud was a little heavier in the hand to me, I could feel the vibration and "jump", and it was noisier. The difference between the Black Ice and Iceman wasn't as apparent, but the Iceman was quieter, less vibration and "jump", and great balance in my hand.

I was going to shoot the Admiral, but I decided that I wanted the Iceman. When I find what I want, I quit looking.