I have a 15EST Fixed nozzle for the 1800. This is their "end strip" model. My question is this, I'm getting a little side-to-side spray sort of like a 180. When I called Rainbird they said I would get a little water coming out of the sides. This doesn't make sense to me, is this somewhat true? There is not a lot of water coming out but enough to be frustrating since this nozzle is designed to be projected like a cone shape. Thanks.