I did some of mine the other weekend, all i can say is:huh:. Took pretty much most of the afternoon and evening, 2x 4 bay chargers down stairs and i had 3x 4 bay going up stairs. 18650's,16650's,16340's,10180 x4 in a cooyoo as a charger, also about 20 AA loops.
Just picked up this pair of Q3's on Ebay, trying to build my e-series collection.. I was told by a reliable source that these were David Chows personal lights (along with many others) if that's true or not there still great little lights.