A friend of mine has said that she had this technique on her hair with 3 colours to give the shine and really fine 'highlights' but researching this it appears that only guys or people with short hair have this done... she has pretty long hair so now i'm totally confused! can anyone help? i always have my haircoloured but the foil sections are never fine enough and always look a bit stripy... i guess cus they have one colour and then the next etc...