After 2 months I am already thinking of replacing the stock tires on my Rancher ES. I just want something with more "bite" and support in the mud. However, the Rancher doesn't seem to have power to spare on the hills I run. So I am concerned about tire weight and moving to a larger diameter. I am leaning toward 25 8X12 Blackwaters for the front and 25 10X11 Blackwaters for the rear. Any advice?