Fantastic responses! Thanks so much to everyone!
Good to hear about avoiding background stain. I'll avoid it.
And Noseoil, I thought I'd give this a PMK a try, and maybe next time compare it to Sandy's formula (flaking out on name). Too many developers lol
David, so you put the used w. the new to avoid having 4 bottles? I was going to have a new/used fix and rotate.