[Richard L]

It you are using a bigger nozzle, you trigger point with be tricky to set up. You may experience booggy down at low load.

I am surtprised that the comany suggest making such a big jump of delivery change.

Aquamist do not make a nozzle that flows 380-420 cc./min. But you can use two nozzles - 0.6mm x2, exact size will depend on the pump pressure, which is unknown to me.

Richard