#20 10-11-2010, 12:54 AM O.B.Left Senior Member Join Date: Mar 2006 Posts: 3,433 So whats the difference between an inside out impact for a straight line plane line and an inside out stroke? Is it just a matter of degree? Does Trackman or D plane measure what we'd call Hinge Action? A rate of clubface closing or whatever? O.B.Left View Public Profile Send a private message to O.B.Left Find all posts by O.B.Left