crease leather like hand stitching all that depends on many different things, like what kind of leather your using, the use of what your making, the look your trying to get, back stitching is it necessary the first answer is yes can it be done without back stitching yes but it's not done unless it's a special look or reason for it. It would be best to know what it is your making "Custom Exotic work " is not saying much people on the site would want to know things like how thick the leather your working with is and , what your making , the more info they have the more you will get back hope this helps.