Going to try this on a 1998 Performer. Could not free the original thumb screw as it was already broken off and the sweeps are locked up on the bent support bar so I really have no other option but to grind the the handle off. Do you use the ash bar along with the bottom disk that comes with the new 7444 sweeps? If so what is the arrangement. In my mind working from the top down under the bowl it would be kettle, ash bar, Disk with the H cutout, then handle to hold it all up. Any advice will be greatly appreciated, and I will try to take pictures for future reference.