Hi Anyone used 5/77 (wella) over bleached highlights? I have a new client next week natural base 5 with about 2 inches regrowth of bleached highlights. She wants to break up the colour with some chocolate brown foils. 2 bleach foils to 1 brown. She wants me to reapply the bleach on her mid lengths and ends to lift her current colour even lighter but I am refusing to do this as her hair is not in great condition. Any advice would be great thanks