This change in grip position effectively shortens the clubshaft and takes a slight amount of power out of the swing making it a little easier to keep greenside shots under control.
Even among its major-venue brethren Shinnecock stands alone in its ability to squeeze every ounce of shotmaking savvy and heart from players’ games — a test hardwired into the course’s layout the slope and contour of the greens and the ever-present wind. When these elements combine — and you can bet they will — watch out.
I’ve worked with a lot of Tour professionals over the years and they all use preview strokes. When dollars and self-esteem are on the line on every putt you go with any performance edge you can find. Believe me a preview stroke is a big one.