Specific Gravity varied widely after topping up.

Since voltages kept remaining higher for the same A/h removed, I decided it was past time to add more water. The batteries were not fully charged so I did not take any SG readings. The plates had no more than 1/8 inch of water covering them and 2 group 27's took over a half gallon to be filled to proper level a few mm under the arms hanging into the cells.

Now they are back to the voltages I've come to expect to seeing for a certain amount removed from them.