Syd got her first haircut at about 13 weeks. I totally know what you mean about the "greasy Kevin" look.
When bath day is nearing and she is starting to get a little greasy...when I take out her top-knot, the hair just stays there in position straight upright and she looks like Don King. It adds to the look that the rest of her is black and tan...but the top of her head is pure white. She looks like a big doofus.