I root from the cut end, so white line wouldn't really bother me, I know I bought mohair from Debbie Henshaw or They Never Grow Up Nursery, and she had the white in the middle had never seen mohair like this before And wrote to her saying I didn't like it, as I rooted from the end, she replyed saying that most people rooted from the middle and that the white dissapeared inside of the head, she offered to replace it but asked me first to give it a try, I did, and was glad about that, however now Debbie has the white at the cut end now, which is easily cut off and you can still root from the middle if required.