Does the grip really matter?
Grips are made of materials that age and wear as a function of time and use. Ozone, heat, dirt and oils from your hands all age your grips and cause the natural degradation of the grip. The traction that a fresh grip provides lets you hold the club lightly without the subconscious fear of losing the club during your swing. This relaxed state promotes proper swing mechanics and wrist action. While a worn grip causes you to grasp the club tighter, causing arm and wrist tension that inhibits proper swing mechanics and leads to a loss of power and control. Yes the grip matters a great deal.