For me it was all about what type of shot i would hit most of the time with that particular wedge. For my 56* I use it for all sorts of shots all around the green and from inside 100 yards. So I went with the S grind which is the most versatile. With my 60* I mainly use that out of the sand or if I need to hit a flop shot around the green. In that case the wide sole is perfect for that so I went with the W grind there
Same for me. I went 54/58 with the same grind.
The best Callaway wedges put out in a while & the first that I can play consistently. These flat out perform as advertised.