I'm not disagreeing on the concern over McGuire getting the most from the few pitchers both catch a significant amount of time- which isn't many.
I do think just about all of our SP'ers would say the prefer Wong, at this point in time- maybe even Kluber.
I don't think Crawford or Wink would, but they are not starters, right now.
I'm just trying to point out that it's not 8 to nothing.