How high off the ground will a Dunham Lehr harrogator lift? I am considering buying one to help flatten a field torn up by removing a lot of trees and brush, with a lot crap left behind. My plan is to pull the implement until it loads up, lift it to "dump" the load then move on. I will come back later to "sift" the pile with a Bobcat/rootrake, then repeat the process several times. I don"t think my plan will even begin to work unless I can get that harrogator at least a foot, and preferably 18" off the ground. Any thoughts or adjustment information on this implement is most appreciated. Thanks.