superdave

I have a steel eagle 24". I am thinking of going to a three or four arm manifold but I used a machine that had just two arms, but had nozzles at the end of each and in the middle of each. In other words, it had four nozzles on two arms total. I can't remember who made it. Does anyone know? It really makes sense to do this as it covers more area faster. It seemed as I recall to have smaller jets in the center ones and larger on the outside, therefore, equaling the pressure better but I'm only guessing. Thanks