I mow a little over 4 acres with mine. Has rough areas, some slopes, and a lot of trees, shrubs, and other obstacles. My best time to date is two hours and fifteen mins. Leaves a great cut and handles the slopes well. Very well built mower. It should handle what your doing with ease. As I said earlier they are both very good mowers, but the s150xt can mow up to 10 mph, and the z master 2000 is rated at 8 to 8.5 mph. I can say the s150xt will mow that fast, but if it gets rough you may have a hard time staying in the seat lol. Getting the suspension insert for mine this winter.