There is a difference between playing for a living and playing recreationally. We can blame the pros for slow play all we want, but it is still us individually who play slow. Having played in quite a few gca.com related outings, I wish we paid attention to what we write some time. Playing a five hour round burning sunlight for additional golf on a wide open world-class golf course is sinful. Of course, it is always the other guy who is slow.
Pat- I've followed Nicklaus a number of times and couldn't keep up with him walking. He was very deliberate over the ball, but he also hit fewer shots and had to wait on his playing partners. I don't remember him being out of place relative to the group in front of him, and, as you know, the pace of play is largely determined by the slowest group in front of you.