Which is the best plate configuration

[hydrotinkerer]

I am currently using a 9 plate dry cell. I have tried two different configurations.

#1) +nnn-nnn+
#2) -nnn+nnn-

To my suprise the the #2 configuration was visually pruducing quite a bit more hho. I dont have a flowmeter built yet to verify my findings. I am using baking soda (1/8 cup per liter) and tap water and a battery charger set at 12v. Water only gets warm to the touch on either configuration.

Has anyone else tried this configuration? same results?

Both cells variables being constant you would notice the center electrode on #2 producing the larger oxygen bubbles. I have played with a cell like those before and the lpm was the same, with the electrolite, power supply, etc being constant. My new cell I just assembled today is
+nnnnn--nnnnn+. We will see how it goes.