Renderotica

I'm new to this product so perhaps its just that my expectations don't meet with reality, but from what I understood of the marketing material shouldn't some of the 4 supplied shell textures match with G3M or Michael 7? I'm having a hard time getting the textures to match any of my characters at the moment, including the base ones. The Material Copy function works fine, but when I apply the shell and pick a texture its way off looking right on the character (either too dark, or too purple/grey, or too pink etc). I've tried messing with the Transl. weight, amongst other things, as the pdf suggests but I still can't get it anywhere close to matching.

Is this just how the product works, or am I doing something wrong? If it is how its supposed to work, and there is no one texture that matches G3M or M7 correctly, does anyone have any tips please for how to get the textures to match up better (other than using Transl. weight)?

Thanks.