To make sure the numbers are fairly presented, of 19 NL catchers with at least 20 games played, Mes is 12th best in CS%. So he's below average so far, but not at the very bottom.
And of course there are wide variations in games played.
And I agree with those who say Hanigan hasn't hit and Mes is showing signs at the plate.
Again, I just don't know how much we can expect from Mes on this score. Glad to hear people think he has a very strong arm. If the problem is accuracy, maybe it gets improved with time.
And I agree that Mes should catch more. I wanted him at AAA this year to hit every day. I was wrong, he's done pretty well in the bigs, but would like him to catch a bit more, like fifty/fifty.