Hi cdpaul,

The hair from the center of the back is the best, usually, for winging, as it is not so hollow as that futher down the sides.

Hair for spinning often comes from further down the sides, nearer the belly. White belly hair can be fairly hollow and good for dying and spinning, but it is not always so. I have seen belly hair that wasn't much good for anything.

Hair on the legs can also be good for winging, seeming to be less hollow that other sources. It is often fairly short, so it won't work for large flies, in many cases.

The tail, of course (in the case of white tails) is excellent for winging streamers, etc.

Regards,

Gandolf