I've heard if you try to root a chimera violet, the flowers will be one solid color or the other, and therefore it's not a true chimera violet. I haven't done this to see if it's true.
On my blooms, though, things look a little more unique than just striped. On a single bloom, there are 2 white petals and the others are pink with some white. Another has a stripe on one or two petals, and the others are all pink. I've been babying them a lot, and it looks like it's paying off. I love the look of them.