Re: Peacock Herl vs Peacock Black Ice dub
since you're only new, it takes time to get used to what tension is required to prevent breakage.
Dont give up on herl. Its is mighty useful, as is the dubbing.
When wrapping herl, you just need enough tension to keep its wrapped on the book.
Try using a hackle plier with a loop in the end that you can put your finger through. That way you are much more gentle with the herl and if you're using rotary function, then you dont even have to move the herl, just hold it and let the vise do the work.
Practice practice practice....you'll get there eventually