I recentley coloured my hair from a very light blonde base 10 with bleach hi lights, to a 6/7. I pre pigged with colour fresh 6/34 then applied 6/7 colour touch, colour is beautifull, however my natural colour is an 8, and I am wondering when my roots come through, should they be pre pigged? If I was taking a client from a natural base 8 to a 6 then I would pre pig, but how do I pre pig the roots? Or is it not needed as 6/7 is a warm colour and my roots are obviously not porous? Thanks!