Hi! Long story here. Two hopefully easy questions.
So, I've used color oops before and even though I was given advice (not here) to use a protein treatment right after rinsing to remove the porosity, I did something wrong and when I re-dyed later that same day got the very dark red back that I had used color oops to remove.
I only left the dye in for five minutes after applying but it takes longer than that to apply the color all over. In later discussions it was suggested that I didn't rinse the color oops long enough but I had rinsed for 30 minutes. I've only dyed my hair once since that incident and that was back in April 2017. You can imagine that I now have a lot of un-dyed roots showing. My natural color is a dark grey with some white hairs scattered around. I'm 51.
After that background, I'm tired of looking like a grey old lady and want to try again. I don't like this dark red and want to go back to the copper/mahogany that I used to get when I first started dyeing my hair. The product I've chosen to help me shrink my existing color molecules (yes I am aware of what these products do) is One n Only Color Fix.
This time I'm prepared to prevent the dark color from returning. I've bought a semi permanent mahogany brown to put on the same day after I do the color removal and will wait until that fades to do a permanent color again. The color is a Clairol product that claims to be for grey hair.
But I have some concerns and thought I'd come here to see if I could get some advice.
With my extensive undyed roots, should I not put the color fix on the roots? That will be very difficult to do.
Afterward, my hair is going to be different colors. I expect the hair that has had dye removed to be a light orange color (which is why I refuse to walk around without recoloring it right away). The undyed hair should still be grey and white. Is that going to look weird after I recolor? Is there anything I can do to even out the two colors so they match more?
This whole process is complicated but I have long hair and a salon is too expensive.

The picture shows the color I hope to eventually achieve. It was a Feria box color but I've since moved on to using pro colors. It costs less. Sally Beauty has stopped selling pro Feria colors; I don't know if they are still made anywhere.
Any advice is appreciated. Thank you and sorry for the long post.
