6s vs. 4s?

[nitrostarter]

Well the higher voltage and lower kv is a preferred setup. You can run lower mah packs like the 3300mah to get the weight lower. Power and acceleration should all be roughly the same for track usage.

I do know the Tekin motors aren't as notchy either.

You don't have to run the RX8 unless you want to take advantage of the sensored running. Sensored is pretty nice on slow take offs and corner speeds. I'm not totally convinced it will improve anything since the RX8 shifts to sensorless while the rpms increase.