WroughtnHarv, your rippers remind me of a loader I used to run for a friends contracting service. It had Vail back up rippers that could be pinned up or in the down position thay flotated during loading/scooping and then you got to hader ground you just backed up and the dug in. One loader had them curved like yours but they had another with a straight shank that allowed it to be in a diiging position and use the smooth cutting edge of the bucket to be tilted down to act as a depth guide. These were WA250 Komatsu's. Ive used the backdrag rippers on a dozer and TLB and they work real good if you want to retain you smooth cutting edge. I saw a ripper similar to yours at an equipment yard it was a bit shorter and only had 2 shanks, and part of a quick hitch. It ran about 900 bucks. They had piles of them but they looked terribly flimsy.