Hii..I've coloured my clients hair using 6rv on a base 7 she loved it when i did it but now finds it's more purple then red but loved it on shade chart I did explain it had violet in it but she still said it looks like the perfect colour, that was the first time I used goldwell and so now she wants another colour on top and I was thinking if I used 6rr would it be ok?or still have the violet tinge to it? :-/ x