I've got a large area that use to have all brass sprinklers and grass. Now it's Orbit pop-ups with adjustable nozzles (link) and plants only. Since they are all 15' nozzles, there's no problem with head to head coverage, but there's now some over spray. I measured from head to head to find out what type of nozzles I need, however it's all over the place. Note: there's a very slight downward slope from the bottom (of the image) to the top. the maroon line is an area that will not have any influence on the selection of the appropriate nozzle for the surrounding heads. the 11' dotted line is a direct measurement (not to another head) of the area the nozzle should be able to reach. What is the best spray nozzle for each head? I can't rely on the adjustment screw for any of these distances.