Going with stock systems [from ANY] supplier has it`s limitations, one of which is color-matching and/or density. If you are not in an urgent hurry, my advice would be to make a template of your head, and send it in to John along with a sample of your hair to enable the factory to give you a good color-match.....browns can be tricky at the best of times as there are so many hues of brown...strong natural daylight shows up the differences. Some wearers get on just fine with stocks, but for many, they can be `hit-and-miss`.....nothing wrong with the quality of hair of materials etc. ...just that they do have their limitations.