I have the Summit and love it but am thinking of buying another 4WD truck with more speed. I am thinking about the E-Revo Brushless Edition or the E-Max Brushless Edition. Right now I am leaning to the E-Max as I like the Truck look. Do any of you favor one over the other ??? I will have to school myself on the Lithium batteries as I know NOTHING about them yet. Any suggested reading would be appreciated too.