well what i would do is see what everyone at that track is runnin for arms,
probly a 7x1, if i were you i would just order a v2 arm and put it in the oj can,
the toso cp will give you lots of power but im not sure about runtime on that style track, Checkpoint is more power and more torque but the v2 will give ya a smooth powerband and more runtime
big wire 7x1 is what i would order, jimmy hat would be a good idea but i that would be the only option i would get...
lemme konw if you have any other questions