Take the skin and turn it skin side up and firmly attached "ABOVE" the work table. You can do this by attaching a couple of temporary scrap pieces of 2x4 to the work table. Strech the skin between the 2x4's, snug but not tight enough to distort the skin. Orient the hide and lay out the width strips you want in what direction(straight or cross cut)you desire. Take a double edge stainless steel razor blade and break it in half (just like you use to trim deer hair) and make your cut. Cut all the way through the hide and follow your layout line. You will only cut the skin and leave the hair and under fur almost completely undistrubed since it is suspended above the table.