I think its interesting that Trinity is doing the EP cell.. I have run both and had great success with both, currently I would have to say the EP cell is more dependable and the IB cell if you find that one in 5 thats good is a better battery. I have purchased 3 different EP cells and they were all race winning packs and by no means had race winning numbers. I think the real interesting thing is going to be the competition between SMC and Trinity...2 of the largest companies in the RC industry going head to head with different products. The good thing is that both cells will do nothing but improve, the bad thing is the batteries will probably keep changing.You cant really count either battery out but it will definitly make the Vegas race interesting.
just my thoughts
MO