A lot of hairs I've seen have a bit of hair clipped up in the back. One of Peggy's early ones does it.
Link.Finding similarities only interests me when it is being compared to a hair from Renderosity or something.
Did you know a lot of hairs in buns look the same? And ponytails? And long hairs? Of course you're going to find similarities.
ETA: And the XM hair and Rose hair don't look similar to me. Looks like you're just grasping at straws.