Client 70% grey wants warm red!

[snaz]

Have a client who it highly grey 70%. She usually as 66/0 on. If I mix 1 part 66/0 with 2 parts 6/5 with 6%. Would this be fine?

Would you suggest bleach bathing ends to remove some of the colour build up and then applying to roots and straight to the ends.

Or would applying to the roots and pulling through straight through to ends show red tone on ends!

Any suggestion appreciated!

 

[Bean198]

If it was me, I'd do 3 parts 66/0, 1 part of the red tone on the roots and use a quasi or semi on the ends of 3 parts red tone , 1 part base? Leave both to develop for max tone??