A good UV_1 tutorial for long hair meshes?

There is no such tutorial. Hair artists like Nightrcrawler, Leah Lillith just skip uv_1 and mesh hair further from the body. I've never made hair, but I worked with necklaces, and uv_1 in this case has to be extremely precise (I didn't succeed after hours and hours of attempts). I guess with current tools it is either impossible to make a proper uv_! for long hair, or we are not aware of the method.