I second that. I did the backing plate elimination when I originally did my SAS and hated it. It's probably fine it you live in a dry clean climate but it gave me problems for snow wheeling when chunks of concrete like mud/ice freeze on the rotors and when you start moving again, horrible ker-pow!. Somehow the backing plates keep your rotors way cleaner. We have miles of gravel here and I got the gritty scraping nasty itchies without the backing plates. Backing plates rule.
It would seem that the jury is split on eliminators. I've already spent the money on them so like I said above, I'm just going to run them and see what happens. I will hold onto my backing plates in case I have the same experience as you guys that hate them though.