I've gardened for years 50 x 100 with just a walk-behind rototiller. But I turned a new area (30 x 60) that had a well established fescue sod on it with my BX2660 and a 12in single bottom plow last fall. Well....that sod in the bottom didn't decay much over winter. It has been dry and warm for the most part. And when I put that 8 HP rototiller in there, that was a battle this spring. After going thru it about six times and raking the sod clumps out it is finally looking pretty good.....What a job however.
I traded/bought a single bottom plow with mold board and wheel from Milkman a couple of years ago. Finally used it with my B2320 and it does a fantastic job. Mines probably 12".
I also took the wheel off of it and it makes the neatest ditches about 6" wide by 6" deep with the dirt piled up perfect on one side. Thought I was having some water run off problems and did these ditches all over my rental property.