After installing the Aquamist 4mm nozzles I ran through a series of duty cycle checks to determine the true flow rate through the nozzles, albeit into atmospheric pressure instead of manifold boost.

I found that after approximately 70% duty cycle there was very little increase in flow rate through the nozzles.

With the change in flow rate that the 4mm nozzles caused, capping the maximum flow rate around 375 mL/Min., I updated the Torq Tune Pump Duty Cycle table.

The new table values put the pump at up to 100% duty cycle, and do so at 17-19 psi, whereas with the pair of 0.7mm nozzles I was running the pump at a maximum duty cycle of 45% and recording more flow.