Chad has also Mastered the art of Bating...
bating
A process which is usually defined as "reducing" or "removing." The basic purposes of DELIMING and bating are to remove calcium hydroxide (or other alkali) from the skin, to lower pH, and, of great importance, to treat the skin substance with proteolytic enzymes so as to obtain desired grain appearance in the finished leather. Bating also serves to impart softness, stretch, and flexibility to the leather, while at the same time providing the basis for a clean, smooth grain by
loosening scud consisting of hair roots, pigment materials and grease. It also eliminates all traces of the firm, plumped, and swollen state of the skin induced by the alkaline unhairing liquors by bringing the skin into a soft, fallen condition. Today bating is employed mainly in tanning light leathers, such as those used in bookbinding, where drape, flexibility, and softness of handle are of primary importance.
JIC you don't know what the H this is...
It's the scud loosening that Chad really excells at!
(man I so have not mastered typing)