Hi French,
This is a personal judgment thing. No right or wrong here but just what you like personally. If you can find a photo in a magazine or the internet of someone with the gray percentage that you like we can send it to the factory and have them match it. Or you can always order the gray in both sections and order human gray---you can color it darker if you don't like it. Good luck.
Regards,
John
http://toplace.com/