Grado new v2 cartridges?

I wonder has anyone tried the latest Grado V2 cartridges? I have the old version 1 The Reference and thinking of upgrading but wonder if they are really better?
I certainly would think they are better or just different in some respect.....can't think of a manufacturer willing to offer an inferior product. I would call Grado and ask them the difference between the 2 cartridges.  No one would know better than they.
I have a V2 Reference Sonata and though I never owned or heard a V1, it sure sounds good. One of my favorite of several MM carts.