while deboxing my Scaris Skelita doll I was excited to see black thread on the back of her liner. I thought that meant Mattel had finally done away with the terrible T-ties. alas that was not true, as you can see them under the tape below.
BUT, the thread does completely replace the rubber bands that held the dolls hair against the liner. my experience has been that where ever a rubber band was, the doll would have a corresponding "dent" in her hair. Skelita did not have these dents.
if the switch from rubber bands to thread has eliminated the dents, then I hope this switch is permanent. in the meantime I'll have to resist buying a flat iron to use on my Venus doll.