Anyway, Winnie did it for me. She was super incredibly good. If I had done it myself, it would have looked pretty much like a disaster. But Winnie even got an a little bit of an ombre look going on.
So that's my news of the day. It's temporary(ish) dye, so it should wash out in a few weeks. I figure worst-case scenario I have to dye it back to dark blonde pre-MTC. I'm okay with that. The whole blonde-stripe thing was getting old anyway.