The sprinklers they've suggested you use are junk. The seals will leak in no time. The threads break fairly easy.
Rainbird has a good name with the public but for many years now they've been selling less than quality items in the big box stores.
With that said, the Rainbird 1800 series is still one of the best spinklers on the market.
You can use the same spray patterns they've suggested on the 1800.
http://www.sprinklerwarehouse.com/Rain-B…Body-p/1804.htm