I saw in HKJ's Battery Summary that the TF Flame 3000's can handle higher amps better than the 2400's. Also notice the difference in the "discharge, down to 3.6 volt" graph. Also, here is link to HKJ's review on the 3000mAh. I would choose the TF Flame 3000mAh version over the 2400's.
-Garry