This is by far the simplest and most straightforward thing to perform. It's also known as the "baseball grip" since the golfer holds the club with 10 fingers. There are no interlaced or overlapping fingers here. To grasp the club, you'll need all 10 fingers, with your thumbs parallel to the shaft. Your hands should be slightly wider than the shaft of the club - this will allow for more control of the ball. The reason that so many people use three fingers to hold the club is that it allows for a stronger grip without using too much hand strength. If you use all 10 fingers, you can harden the skin on your palm and avoid needing rubberized clubs. It's best not to think about how many fingers you use when holding a club. Instead, just go with what feels right. Some great players such as Sam Snead have been known to use four fingers!