I always sit under the hooded dryer first so that I can set the entire outer shell of my hair at the same time. I typically sit under the hooded dryer for 60 minutes, then diffuse my roots for about 10 minutes. If I start with the diffuser first my hair would not be in its most elongated state.
I know many curlfriends that have a full head of grey / silver hair and the color was gives them coverage over their strands. I have grey hairs here and there and it covers them as well. 🤗