Watched many videos, mostly by Hans W. where he splits a thread to create a loop in which to place dubbing. Then he spins the thread to lock in the material prior to wrapping it around the shank. I understand that he uses thread that is fibrous rather then bonded. My question:
Maybe it's my eyes, but is there a trick to splitting so fine of a thread? I mean, I think he's using 12/0 thread and I'm having a great deal of difficulty with 6/0! Any suggestions appreciated.

Allan