I put a few lowlights through a clients hair which was previously highlighted with a mix of tint and bleach. The colour came out fine (i used majirel 6.34 and 7 with 3%) however there were a few small patchy spots where the colour didnt take which were quite noticable on her poker straight hair although luckily not on the top. I thought I used a enough tint and worked it in with the brush. This has never happened to me before, does anyone know of another reason for the colour being patchy or do you think i need to spend more time working the colour in??