Human Surface Shader is a different shader. There’s also uberHair, which has three “upgrade” presets that will do a better job of preserving the original hair’s look than just holding down the command/control key and selecting the ignore maps option.
I don’t agree with that. They don’t keep the original look at all, they change how the shine and sheen work dramatically. One can argue they may be better than uber surface, but just don’t expect them to look anything like they did before. Frankly I don’t really use uber hair myself because I don’t like what it does to the hair a lot of times. It’s great for certain looks but not for others.
By default I use ubersurface with the ignore maps option, and if I want to try to spice things up I move over to uber hair. But I probably only use it 10-20% of the time.