Goldwell 11 series

Hi Claude!

I am a level 6n goldwell. I want to light with the topchic 11 series and the debate about how to do it has left me searching the internet!

So, I was thinking 11v maybe with 11P and using 40vol. Am I going to need the blonding cream in ASH to really lighten it up?


How necessary is using the demi-color after and if so what shade should I try to keep the consistency?

Thanks!
Misspublius