That was what I was thinking. But that was originally when I had planned to use the 8xl. With the 2200kv MMM, I might want to step up the voltage. Especially if the setup will run as cool/cooler. Then again, 4s looked pretty fast, and I could run all day long. If the setup would run hotter on 4s then 6s, there is really no point. And with 6s, if I am not using the power all the time (wont be), then wouldn't I just be getting extra runtime?

Quantity vs quality...