I have a 151 pull behind disc plow for a cub a one disc draw bar disc plow. When I bought it the disc was so worn out it would not cut into the ground. There great plows for hard clay, rooty ground and sand.
The one i have on the Cub is a F-153 fast hitch disc plow it is for the fast hitch's. They made a 152 disc plow witch is a bolt on style. They work really well in hard dirt.
For ground that has a lot of roots and hard clay it will work better than a one bottom plow. The disc plows have bearings in them so they will turn and cut while plowing.
Thanks that was the first time really having the camera on the tractor. In the video from the plow days this year I got a lot better footage of the plows working.
Will have to get a video of puting it on. It is fairly simple the 153 disc plow has two clamps that clamp the plow to the U bar on the fast hitch and there is a pin that holds the rear from sliding.
I've seen the standard belly mount, just never the fasthitch. They look the same except for the fasthitch part. Pretty neat. I've got all moldboards with fasthitch but I've heard they made a disc, just never seen one.