All of them starts 10 frames after the loading screen, and ends 10 frames after the lockpicking timer disappears.
0:00 | Usual M16 way, takes 22.583 sec.
0:23 | Usual 9mm way, takes 22.783 sec.
0:45 | Different 9mm way, takes 22.867 sec.
Usual M16 way may work on XXX% like you see in the video, but it's more suitable for Any% rather than XXX%.
Different way is recommended for NM XXX% and Pacifist Any%.