Thanks John. You are the man!
FYI: For those doing single cell testing, I've been thrilled with the
Mean Well 5V 120A (HRP-600-5)_power supply (120A continuous, 162A peak). It cost me $180. I was able to adjust the voltage down to 4.220V.
I recently discovered the
SE-600-5 model for only $115 or so. (Currently, there's
10 available on ebay for only $67!) Not sure why the 2 models are so different in price. Mean Well also offers 7.5V versions which can be adjusted to 8.440V. I'm sure there are other brands out there to, but Mean Well was the best I've found yet for the price.