Found! The plate hole test: dry or wet. 8% difference!
I ran a few tests yesterday on the Amoeba Cell.
There is a single 1/4 hole at the top of all plates.
There were 2 test positions for the Amoeba Cell relative to the reservoir.
Low position: a lot of electrolyte is pumped along with the gas.
High position: mostly gas with very little electrolyte.
My first observation was the change in current.
9.6 Amps in the low position, 8.9 Amps in the high and dry position.
Everything else remained the same! Voltage, temp, and output.
9.6/8.9 = 1.078 or ~ 8% more efficient. QED
This experiment demonstrated the importance of keeping the cell holes
high and dry with minimum automatic replenishment.
The close height positioning is a benefit for car mounting where height differential space may not be available.
I hope that this helps.
BoyntonStu