Tea N' Moon - A Guide to Weights in the Sims 4

John Park - Intro to Weight Painting in Blender

S L Y D - How to do a SMOOTH weight transfer

S L Y D - How to fix under arm glitches under arm

Sims 4 Studio - How to Do a Smooth Weight/uv_1 Transfer

Mauvemorn - Transferring and Editing Weights in Blender 2.78