Thanks for the fascinating reply Romeplowboy. Given that I'm not going to approach the tractive force of a D7, do you think that it is a worthwhile feasible upgrade for a 2 wheeled 12HP tractor intended to clear trails with up to 2"D saplings. I can use loaded AG tires, counter weights and even add chains but there is still a practical limit to the traction available. I think the 12 HP Kohler engine can provide all the power I need up to the point the wheels slip.
On a real Rome Plow did the horizontal cutting blade just cut brush or did it also cut small trees. In other words, approximately what size tree/sapling dictated switching between using the cutting edge and the stinger? Although I'm a Vietnam vet I never did actually see one in operation. They sure did do a job clearing jungle though.