"S" sized motor vs "L" sized motor

[GO-RIDE.com]

I agree with other posters. Save some $ over time and get a Mamba Max if you want to run 3S or at least a Sidewinder. As for S can vs. L can, if the 50mm Feigao is anywhere near as powerful as the 50mm Medusa I'm using you will have all the motor you will ever need unless all you do is speed runs. I'm using 1/2 throttle to clear 25' triples with a Medusa 50mm x 3300. At full throttle it would probably clear 40' and that's with a 15' run in.