I recently installed a Ballistic EVO 2 LiFe battery ( http://www.ballisticparts.com/produc.../batteries.php
) in the Bandit. Works well, but does have the same cold weather issue. Basically one shot at starting is needed to generate some heat in the battery. Second try she spins like a champ.
Took it out yesterday to see how far out of balance the cells were after a couple cold starts ( as low as 25* F) and was surprised to find them all with in 1/10th of a volt. I then balance charged it seeing as I had it out anyway.