So what do you do with the chewed up material, you just leave it on the shoulder? looks like in the pics that you run over it with your grader, I always grade right to the edge of the road where the ditch meets the shoulder, first round on my roads I have a bit of sod on the shoulder but my stinger blades break it up really well and I just mix it with the gravel, it dries up and blows away, leaves a clean shoulder for water to flow off, we use them discs attachment on a loader for chewing up the gravel/sods on our shoulders on our pave roads, pulls the shoulder on the edge of the pavement, one grader scrapes it off level, another grader finishes the graveled shoulder with proper slope and gets rid off any debris from the Discs, leaves a nice clean shoulder level with the pavement, we do it all as one long train operation effort in the spring on our pave roads, we do about 60kms -35-40 miles a day, 30kms down 30kms back up other side, we are starting next week I will see if I can get some pics of our operation. thanks for sharing some pics