I just rewatched the video. It’s 8 ms and, yes, that was for a Shadow 
Indeed! My other hobby is playing djembe (drum from West Africa). Timing constraints are similar there, well below the 100th of a second mark. Experiments by musicologists show that timing variations in a rhythm as low 3 ms are perceivable. I don’t know whether that same threshold applies to activating something in response to a stimulus (such as hitting a flipper button while watching a ball) as opposed to being able to simply perceive a timing change (such as when listening to a rhythm). Regardless, it’s impressive what human ears, eyes, and brains can do
Not meaning to hijack this thread, but does anyone know whatever happened to Pinball 102? Pinball 101 is brilliant, IMO. I love the humour, the really high-quality production, the creativity, and the educational value. This is a truly professional product. Big congrats to Keith and Randy for their outstanding work!