It's worth mentioning something that bb himself has tried on many occasions to get across.

The purpose of VSS is not to improve the appearance of skin in your renders. The purpose of VSS, in a nutshell, is to provide a user-friendly interface to the Material Room.

It just happens that bb put into the free version of his VSS Prop some human skin shaders that he had been working on for some time. VSS is a tool which enables him to adjust all those different skin shaders in just one place (the VSS Prop) and apply them to a whole figure with a single click, thereby vastly reducing the number of hours spent in that unfriendly environment called the Material Room.

So if you are not happy with what the "VSS" skin shaders are doing to your figure, you have to adapt them, or make your own. It would make sense to build them into the VSS Prop, and save yourself a lot of time applying your own shaders to your figure. But learning about VSS and learning how to make good skin shaders are two completely different things...

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)