Bleaches for clean result on dark tinted hair

[hair_sanity]

Hi, I'm looking for a bleach that can be used on fine level 6 tinted hair that doesn't leave orange/dark yellow residue. I mostly use Wella blondor but it only brings it up to a level 7/8 with tint residue. My client wants to have level 6 roots to cover grey with level 10, clean ash ends but I'm struggling to get it light enough and as her hair is fine, I'm cautious not to over process and cause breakage

 

[AcidPerm]

Its not a residue, it’s underlying pigment colour. Are you a qualified hairdresser as this is basic colour knowledge.
Also, you won’t cover grey with a level 10. It’s needs to be a 9 or lower as you’re adding pigment colour to white hair and there isn’t enough pigment density in a 10. You’ll just get a very translucent coverage.