I think it was the Kondolays(?) who have tested the input pressure of the VP44, and found that anywhere from 15-25psi is a great place to be. Don't want to be much higher then 30 for any reason though.
Am I close yall?
DezulPower, What kind of set up are you runnnig to get 23, and 20. Also could you list your BOMBs, thanks.
Andrew