I am going to be getting a backplate rig very soon, and I have read many posts that complain about burr problems. Maybe this is a issue of the past, but I though I would add a few comments about using a chainsaw file and its benefits, since I have only seen it mentioned once.
1. Any Home Depot or Lowes has them but they are not found in the Tool section of the store, find them in the lawnmower section. Or you can get them year long at any John Deere dealer. Some Aces also carry chainsaws.
2. They come in 3 diameters that I know of.
3. They are not tapered, therefore they cut uniformly.
4. Since they have a unique cutting pattern that leaves a very smooth finish, so there is no need for sandpaper.
5. They are much easier to handle than a mototool, no chance of walking it across your backplate by accident, yet they cut rapidly.
6. I would highly recommend them for the stainless steel backplates, for aluminum they might clog up. Perhaps an fingernail emory board would be better on aluminum or I often deburr aluminum with the backside of the razor blade on a utility knife.
Good info. I'm going to be deburring a Hammerhead STA soon and will look for the chainsaw file.