I'm only thinking 60 because that's what I was hitting so well at the Outing....haven't listened to the show yet so my opinion may change but I'm only referring to the known right now. My current set up goes only up to 56 so maybe 58 is where it's at
The podcast said Justin Rose was a 52, 56, 60 guy, and I know an awful lot of people who use that same setup. But, he decided the 56 was so versatile that he dumped his 60 and switched to a 64. He uses 56 for everything, unless he is in a tight spot and needs the super lob 64.
That really has me pondering. I use 50,54,58, and while I use the 54 out of the sand the most, I use the 58 for shorter bunker shots. I cannot imagine using just a 54 as my sand wedge.....but maybe a 50/56/62 setup??? (because you know, my short game is every bit as good as Justin Rose!)