Something that will help is "twist" your Herl with the tying thread, spin the thread and herl together than wrap.
Something I do from a "Suggestion" by Al Beatty is to turn my Herl into "Premium" Herl by Steaming it for a few seconds.
Pass it back and forth thru some steam coming out of a Tea or Coffee Pot, once it start's "Fluffing" up its ready,
I do this about every 6 months or so.
Something else is to buy it from a dealer that has a High turnover.