Hi there geeks , looking for some advise please. My client is naturally a Base 5/6 we have been using 12/1, spot 12/11 12% kp on roots for a while now with 8/81 colour touch toner at basin as she has a lot of natural warm tones and wanted a very light ash blonde. She now wants to be a Base 8/9. I'm thinking 9/8 with 9/1 kp 6% roots and 88/0 8/1 kp ends with possible toner again at basin but worried the root difference will show. The high lift tint was irritating her also so wanted to bring it back a few shades to be kinder to the scalp but still give her a nice light blonde. Any thoughts would be appreciated on this. Thankyou