If you can't decode your Master Lock dial combination padlock despite trying methods on youtube, try these more advanced methods.
Note that this method only works on Master locks of this type. This one is anti-shim and has "gates" or "gaps".
Master Lock dial combination padlock playlist: https://www.youtube.com/playlist?list=PL2mzpXp-I6G1qfzQY6c0f1WSL2LGICT9A
See video 95 to see how to decode a a different type of Master Lock dial combination padlock: https://youtu.be/G90SfXC3JJM
See video 94 to see how to decode a Master Lock "Glo": https://youtu.be/y3y0UX81r54
See video 93 to see how to decode a non glowing one: https://youtu.be/ZdcTHv4JKYs
See video 92 to see how to decode a standard Master Lock dial combination padlock: https://youtu.be/RqjMjpF65Tg
See video 91 to see how to decode an older-style Master Lock dial combination padlock: https://youtu.be/9JbNGf0vLcw
See video 79 to take a look inside a master lock and see how it works: https://youtu.be/5wlQrN07Fq0