I just put two new SM-5's in the bag, replacing my older spin-milled 56/14 and 58/08 with a 56/14 F grind and a 60/11 K grind. Both chrome. I absolutely LOVE them both, especially the wide K grind. I also really like that we're starting to see some higher bounces in the lob wedges. They have a lot of great options with bounce and grind now, so it's worth spending a little time with them to see what works best for you.
@David in FL and @mvmac. Now you have me thinking about changing my SM4 58.12 with M grind to the SM5 58.11 K. One question, what about opening the face with the K grind and flop shots? Part of the benefit of the M grind was to allow you to open it wide and keep the relative bounce the same due to the relief near the heel. I don't play a flop that often, but it does come in handy at times. Does the K grind have that relief?