I have to admit that here are always very interesting topics and "problems" !!
I do it, if possible, like Econlady and Sweet Prodigy. Even so that the color really dissolves without residue.
My tip for the dark pink: just add a little yellow and let it stand overnight. Then at least it shouldn't look pink anymore. ... or ask Teri @Teri Pringle Wood, she always has very nice deep red tones, I find.