PineRidge, Corriher recommended the 72" boxblade which is what I got. In playing around with it I have managed to load it up to the top and the tractor didn't show any signs of bogging down. As you can probably see my land is mostly sandy and loose so it doesn't take much to break it up. I don't think I will ever need the rippers. I wish I had some real "soil". Pretty much have to stick with native, drought tolerant vegatation.
Rich