The coat king isnt going to get thru a thick aussie coat when burrs are in there deep. Get some Show Sheen, and a hard slicker. Separate the coat around the burr, mist it with Show Sheen, and work them out with the slicker. A coarse gteyhound comb would be helpful too. What happened to you with the scissors is why you should never cut matts or burrs out with scissors. If they must be cut out after all attempts to brush them out, use a clipper. Much safer.