The camera angle must be exact to accurately measure this kind of thing. It should be exactly at a right angle to the player's plane line, directly across from the ball.
There was a fellow that played the Nationwide Tour, and won a tournament, that played the ball forward of the left shoulder(with a driver). His left wrist became the fulcrum... and he was very long, and usually straight. (Rob McKelvey)
Also... take a look at Billy Andrade, and Todd Hamilton... not sure, but they may be in similar positions.
I once saw some footage of Evan Williams(Big Cat)... he had a similar look.(Long Driver)