here are the arcs - 1 360 hunter 15', 2 ~180+ hunter 15', 1 ~120 hunter 15', 1 ~120 hunter 12', 2 ~120' rainbird. the yard has some curves. not perfect rectangle. i may be interested in the tech if suggestions don't work. also, the valve on the strong zone looks like a rainbird you would see at home depot. the valve on the weak zone looks like more of a professional grade hunter. thanks