Jacob Johnson was with the Dayton Dragons all of the 2010 season, essentially being the anchor of the staff throughout the season. Today I thought I would take a look at the mechanics between his slider and his fastball. Like last week with Josh Ravin, I started at the high point of the knee in the wind up and worked backwards 60 frames in each video. From there I took every 5th frame (30 frames per second) of each video.
To me, it looks like Johnson has nearly identical mechanics and timing on each of these pitches. Do you see anything differently? Below is some video that I shot from him in May of 2010.