The nozzles selection is a nice thing to have, but remember, it is mainly for making a head more universal (useful in different applications). Your main focus should be on matching your precipitation rates across the zone, and delivering the water over the designed distances. The other features such as the water shut-off feature are just convenient at the initial install. Although it is handy, not so widely used after install is complete. <><
Josh
Irrigation /Landscape Lighting / Pump and Well Specialist