Earth Tools' website notes that the Berta rotary plow will work on BCS and Grillo walk-behind tractors that have at least 8.5 hp (gas). My question, "has anyone used a rotary plow on an 8 hp gas engine tractor?" I would be using the plow on ground that has been plowed with a moldboard plow by a large tractor, disced and rotary tilled. Eventually I reseeded the area but I know the condition of the soil and it's in good shape. This is a theoretical question at this point because it would probably be next year before I could do this. Buying a plow and a larger tractor are not really in the equation thus my question. I do know that I would need to upsize the tires but that is doable. Any feedback would be appreciated.