Size isn't the only difference between these new drivers and their predecessors. A few years of clubmakers working with titanium has helped, too. And the deeper, wider hitting area means more forgiveness for straighter shots. For instance, TaylorMade claims the sweetspot in its 360 cc model is 25 percent larger than in its Ti Bubble 2 that debuted in 1997. A lot of golfers need spin to create lift, which helps create trajectory, and thus distance.
Stronger players can live with less spin because they can power the ball into the air.
Experts think not, saying these new titanium drivers should signal an end to the growth spurt. Once a clubhead reaches a certain size, manufacturers agree, there's no more advantage in distance, forgiveness, or visual appeal. And controlling an even larger clubhead is more difficult. Bigger is also harder to build. Still, bigger heads exist.