Hi I currently use wella 12/0 12/1 with 12% it's a light blond colour but wanting to go more an ashy blond was thinking 12/81 but would this go too ashy on my already blond hair if I put it on the roots and run it through to the ends in last 10/15 mins I have done my level 2 but been a while as been off having children as its my own hair And not a clients