We have a late 140 high crop. I have often wondered if there were special implements for them. Ours came outfitted from the dealer for a town owned nursery, so one would think if there was something special for it, it would have had it. Anyway, what I have found is that it is not possible to get the tools horizontal (flat) enough to the ground, in the way they're designed to operate, so they're always digging v-grooves. It still does the job and has been for a long time, but it sure would be better if the tools were less upright, like they are on our C. Maybe I'm missing something in the adjustment. The tools do eventually wear so that they are running at the right angle ---- and then it's time to change them.