We shoot a great deal of foxes every year and when the skins are in top condition we actually use a small compressor. You place a small cut in the back leg and place the air nozzle up the leg between the skin and the flesh. Put your hand around the leg and the air nozzle, grip tightly and inflate. If you have done it correctly the skin will seperate from the body by about 90%. You still have to skin around the head and we use two sticks to slide the tail off the bone. Give it a go......