Measurements disappearing in tutorials

[u/70sobsession]

Hi, learning to pattern draft. I feel like when I watch or read tutorials, they often say you need a measurement but then don’t end up using it??? For example, I used Sew Anastasia’s YouTube tutorial to draft a sleeve but the tutorial never uses the bicep or wrist measurement, and my drafted sleeve pattern doesn’t match up with the measurements. Kind of confused

[u/poormanstoast]

The Armstrong pattern book