In my younger days Dad had a 930 Case and a 5 bottom plow.   In furrow of course so you could put the right front tractor tire in the furrow and pretty much day dream the day away, just pay attention on the ends.    In the early 70's he got a 145 Versatile and an 8 bottom plow.   Now you had to pay attention, sure made for some getting used to that first year, especially as the plow had a castor wheel on front so if you weren't perfect in the furrow the plow wheel would run sideways.