Hi, I'm a newbie, just trying to get my head around the finer decisions about what tone to use for a high lift. My friend wants me to do her roots, she's a warm level 7, wants a natural looking light blonde, she says that at her last salon they used 12/1 but it still turned out quite ginger at the roots. I'm wondering about 12/11, but also isn't it blue that counteracts orange? Therefore I was thinking 12/8 could be better but at college they always said /1 or /11 to get rid of warmth. Could anyone explain the distinction for me, when would you decide to use a 12/8 rather than a 12/1 or 12/11? Thanks, I want to get it right for her! Sky