Just like to add a footnote to this thread. For anyone wishing to try out my solution...typed in earlier. Try laying your nylon hair over a piece of Frost King Clear Weatherseal Tape that's been cut long enough to surround the circumference of your jig's collar with a small tag end. Cut the tape to size, horizontally, if it's too wide to work with over the jig head collar, before laying down your nylon hair. Spread your hair over it evenly, leaving the tag free of hair, and then wrap the collar with it. Secure this wrap with a twist tie, if necessary, before the final cable ties are applied. Cinch the cable ties over the hair and then remove the twist tie. Remove the tape if you can.
You may just find this to be a relatively easy solution. Oh, and you can wax the underside of your cable ties with crafter's beeswax if you worry about slippage. Singeing the hair behind the collar should prevent any pull out.