You might be surprised just how much you can tell just by looking at the shape and size of a driver head. After you read this article and with a few measurements, one should be able to approximate some information about your driver that it takes a machine costing several thousands of dollars to do. What prompted this article? I had a customer recently email me why we don’t publish more information on our clubheads. I politely responded that in many cases it can confuse the average golfer. He was interested in particular to the MOI of our heads. He wondered which of our non-square models had an MOI of 5900 g-cm2 (an explanation will come later). Continue.