I saw him 3 games in Everett (and one game In Spokane, my first game in Spokane actually)
Footwork seemed fine, but yeah, little odd with the throw (of the two things its the least worry some)...I dont remember if he seem to lean away to the side, or to much back as he stood up...I do remember like it was a bit slow...but he was dynamite at the plate, and its what everyone has on the front of their mind.
I didnt go there to analyze Zunino, so I probably wasnt paying enough attentions to the details of his throws....but it was a little slow. (that part I remember, because I had asked a friend in Spokane if that was a problem...but assured me, footwork is better to have down, other stuff he can fix quicker)
The only thing I remember was the Dingers! and it seemed no one could get him out.