I would not recommend mule tape to any one. We got some from a lineman friend a couple years ago and tried to yard out an elk I shot. That tape snapped after pulling on the elk for about 5 yards. We said hell with it after that and brought out the coils of haywire. We heard great things about that tape, and maybe we just had a weak length, but I wouldnt use that stuff again. Haywire all the way.
You may have been using too light of mule tape.We use 2000 to 3500 lb stuff and have pulled elk out of some serious hell holes.It worked great.Dont remember breaking it ever.