Hi, I have a client who currently has a Milkshake 5.87 (I think, but definitely at a level 5) and she's wanting to go to Affinage 7.2 which is very ash. How am I going to do this? Lift to higher than a 7 and tone down? Do I need to use colour remover before hand to make it easier? Any help would be amazing. I've only been qualified a year.