I think they may be pushing the envelope of safety trying to put 3000mA capacity in there where other brands limit it to 2400 or 2600mA.
Protected cells are NOT supposed to do this thermal runaway thing !
NOW I'm Really wondering what caused this incident !
Someone please explain how this can happen with protected cells ?
So it might be an idea to number the batteries so you can periodically swap them from front to back , to give them more even discharge.
Do not buy *fire brand product (surefire excluded) and you will be fine
if you are non-sophisticated user just stick to protected cell like AW
if you are sophisticated enough to use unprotected cell then opt for panasonic, sanyo, sony, samsung and LG
basically all li-ion 2 bay chargers in the markets are crap, it will be much much more safer to modify those chargers that come with electronic gadget like camera or mobile phone than using crappy china made chargers.
if you can afford, go for hobby grade charger like schulze
for headlamp DO NOT use any lithium cell at all, use nimh cell instead
imagine if you burnt down your house, whom are you going to sue ? you probably won't even be able to find out who is the real manufacturer, even if you found out do you think they have the money or insurance to compensate your loss ? all community product in this market are maybe just higher than hobby grade, but it will never meet the OEM standard.
Sorry to say this, but swapping the order of series-connected cells won't help in the slightest. With cells (or any other component) in series, they all experience the same current flow, so they will discharge at the same rate regardless of the order. The lowest capacity cell will always end up empty first.