How would you approach this correction?

[BlondeKatie]

Back story. Client went from a root drag (5) on base 5/6 hair and the rest was a full head foils and wants to be a full head bleach and silver eventually all over. 1st appointment she had to get rid of the roof drag she had a full head back to back foils but is now left with a band again obviously. How would you tackle this? Was planning on another full head foils but want other opinions...thanks in advance x

 

[ronray]

Back story. Client went from a root drag (5) on base 5/6 hair and the rest was a full head foils and wants to be a full head bleach and silver eventually all over. 1st appointment she had to get rid of the roof drag she had a full head back to back foils but is now left with a band again obviously. How would you tackle this? Was planning on another full head foils but want other opinions...thanks in advance xView attachment 209925

Foil work is the safest option I would say, do back to back again, and only lighten the sections that need to be lightened. Low and slow is always the best. The you need to tone to even it all out make sure there's no yellow left, then apply your target shade.