I have a 3 pt. disk harrow bought new a few years back for food plots. It does a good job but of course leaves a 4"-6" furrows on the outsides of each pass. Factory furrow fillers are available but expensive. Ran across a thread somewhere in which instead of adding furrow fillers he simply cut down the two outer rear disk several inches(4"-6" I suppose). I didn't see any feedback where that would be a problem. Anyone have any experience or advice if this is an acceptable modification? Thanks.