1
Back when pitchers went up-and-down the elevator shaft.
Takes so much more precision for Iwakuma to work up-and-down, with this zone, than it did Drysdale... back then anybody could throw the high strike. You could almost divide ML pitchers into two sides of a ledger on a yellow tablet, which ones can throw a high fastball for a swinging strike and which can't.
Two who can, Iwakuma and Harang, are getting K's farrrrrr in excess of their stuff.