Hi, I’m new to this salon geek. Looking for sone advice. I’ve just started using illumina. I have a client with pretty light hi-lights which have built up so it’s pretty much block colour, usually use 10/16 kolestone to tone. Her natural would be about 7 with 50% white. How would illumina 8/69 work? Would mixing some 8/ in with it be enough? Or would that still leave it too violet. Going for a more natural/ grey ish look. Thanks