Having played TSR for almost two years, I was skeptical that they were going to make it better.

-- Gordon Sargent, World No. 1 Ranked Amateur

Sargent's statement is understandable, given the popularity of the TSR lineup—Titleist's most successful driver ever—and especially given his persona driving performance, which has made him known for his prodigious length and accuracy. That's a pretty hefty one-two punch.

Yet Titleist ambassadors have quickly adopted the GT lineup on worldwide professional tours. Top amateurs who had the chance to be fit before the official launch at the beginning of August did the same thing. They made the switch. So what did Titleist get right?

Speed, feel, and sound are three of the hallmark characteristics Titleist has been known for -- one of the reasons the company hasn't deviated from the black glossy finish is that it's faster. And you'll seldom hear anyone say they don't like the feedback they get at impact, in their hands, and in their ears. GT had to excel in these areas. 

Let's start with speed.