Originally Posted by Nereth
The planes requirements will likely be met with either option, I'm just trying to figure out which one will most likely meet it better, since I will only be purchasing either a lower cell count battery or a lower pitch prop for now, rather than purchasing both to be able to test.
Apparently you missed the whole point of my post. Using the same battery and changing the pitch from 8" to 6" you will see a slight change in performance. Maybe better, maybe worse depending upon your desires and the airframe. Staying with the 8" pitch and dropping a cell in the battery, you will see a dramatic
change in performance, most likely for the worst. You will have dramatically less speed, acceleration, and vertical.