I just read the article....lol
Martin acknowledges it's not really a pitch you try and frame.
“The receiving component of it kind of goes out the window, your thoughts are, ‘Just catch the ball.’ Really, there’s no framing the pitch, or making it look good, it’s a cross-mix of a first baseman’s glove and a catcher’s glove, it’s a bit bigger, and you just try to centre the ball in a good part of the glove.” - Martin.