So am doing my sisters hair in a few weeks time at the moment her natural base is a 6 and l the rest are 8/9 previous highlights they are very warm which i want to get away from she wants balayage am thinking for the root a 7 but just thinking of ideas would you colour the whole head u 7 and then dry and go throught with loreal freelights and tone or am i over thinkig being mobile i question myself alot and lack confidence in my final desion what to do any ideas thanks