A quick start test of the Mamba Monster 2 on 4s and 6s Lipo running a Castle 1515 2200kv. Batteries used are a Venom 5000 50c 4s and a SMC 4300 40c 6s. I love how the 6s is smoother throughout the throttle curve so I'm planning on buying a 1550kv motor in the near future.