LynnBlakeGolf Forums - View Single Post - Effective Clubhead Mass Thread: Effective Clubhead Mass View Single Post #1 12-26-2011, 05:55 AM Par71 Member Join Date: Sep 2010 Posts: 88 Effective Clubhead Mass Could someone (possibly someone with a background in physics or engineering) please explain the physics behind the concept of Effective Clubhead Mass (2-M-2)? I have looked up the term "effective mass" in my old physics books and on Wikipedia but cannot relate that to what Mr. Kelley talks about in 2-M-2. Par71 View Public Profile Send a private message to Par71 Find all posts by Par71