Friends and I have caught so many fish of varying species on wool jigs over the past year that I may never again fish much without at least a little bit of the sheepskin involved! I've tried a few ties with a lengthy chunk of wool as the main focus, tho have done much better with the original pattern that Red Denmark taught me - an initial short tie of this water absorbing material on the hookshank first, with satin or other materials over it and on each side-when wool expands with wetness it forms a robust minnow shape with the more colorful materials pushed out & yielding much superior action.