Aside from one being 60 the other 58.  The 60.10 has 10* bounce while the 58.12 has 12*.  They both have the same grind on them, the M grind.  I would say the 58 would be marginally better out of the sand, while the 60 would be slightly better off tight lies.  Difference would be minimal.  I have a 60.10 SM4 and love it.  Can hit it off the tennis courts at work!

What are your other wedges?

Brad 

I can confirm you that the wedges are amazing, just got my wedgeworks back, 56-52 degree black oxcide tvd and they feel amazing, can't wait to play more with them!!

Pete