ah, wasnt aware, this is what i have been using, maybe i should RTFM of this thing some dayThanks for the suggestion, but I already have one of those. I think they are good for checking connection resistance, and I did use it to test all my cells. However, the manual says it is not for testing large cells. It is an AC resistance tester, and I think in larger cells capacitance and surface effects hide the true resistance of the cell.
I want to be able to pull 150 amps from a cell for 30 seconds and watch the voltage sag, and then see if that is a useful metric to compare cells.