I have a Samurai cat from MinicatUsa and it comes with a "Tenshock" 2000Kv motor. Dimension is about 40x60. Being slightly larger than a standard 540-sized brushless motor. I really love the boat but the motor gets quite hot, I am using their stock setup (prop), the only thing different is I am using a Seaking 90A ESC instead of their "Tenshock" brand. The ESC is cool to the touch, only the motor gets hot, anyway by turning the motor I don't feel cogging hence I think at the most it is a 2-pole motor. Want to up grade to at least a 4 pole one. Don't know if Leopard is over kill, speed is not the ultimate goal, I just want a motor that is not over working so it will not burn the motor mount ( laminated plastic? epoxied into the hull). Aquacraft or Proboat will be fine, just want advice,thanks in advance. Tim