Guillaume and the other Titleist players will provide feedback to the Tour team as they practice and play with the prototype 913 drivers

Guillaume indicates that it's on the number!

When asked to "step on one", George recorded a ball speed of 185mph, compared to an average of 165mph. Good to know you've got the gas when you need it!

George Coetzee at the start of takeaway

And fires one down the range with great launch conditions into a prevailing wind

Titleist ambassador Matteo Manassero weighs up the first 913 set up before hitting a few

....and the numbers help underline what Phil has watched on the range.

First out of the gate to test the new prototype 913 driver on Monday was France's Victor Riu

One of the hardest workers on tour, Jbe Kruger starts his downswing

Staffer Andrew Dodt steps off the range to look at his launch monitor numbers