Wow, gratz dude... I've been busy and away from the forums.

I bought the same cells, after a manual balance they haven't wavered a bit. I top mine to 3.70v, make sure they are there stable (about 13 sec or so) and then overnight they drop to 3.65. After 14.68Ah ride, the cell voltages are all +-.01 v of 3.27... I figured the voltage "wavering" as related to wattage draw and such, and backing off the throttle seems to work.

Usually they are at about 3.60 after a day of sitting and it seems that as soon as I put a real load (1 block ride) they hit 3.36 and stay there a long time. Day two they hit 3.55 and the the discharge is very slow it seems.

My batteries are down lower in panniers (I'm sure you saw) and I still feel the higher center of gravity, especially trying to balance on tight, uphill corners (pedestrian bridges). It is taking some getting used to. Love your protective case. My choice was to split the entire battery into two pieces and distribute the weight until the "monsters" arrive to be mounted in a trailer. I've been considering Pelican cases with creative labelling instead of the fabric, but so far it's working for the small set.