I have the Novak Goat 18.5 system, a Mamba Max with a Homes Hobbies 7 turn Cobalt puller on 3 S LiPo, a Mamba Max with a Holmes Hobbies handwound 35 turn 540 motor (smoothest combo I've ever seen with TONS of torque and wheelspeed), a Quark Pro Car 33 ESC on a Holmes Hobbies Revolver brushless outrunner. In fact, I had two goat systems. After running the holmes hobbies stuff and realizing that the Goat didn't compare to my other combinations, I sold one goat. Now after running that other stuff some, I'm about to sell another goat. The goat is a great system for someone that wants to bolt somethingin and play around, but the other systems are comp worthy. The quark ESC is the smoothest ESC that you can run with a brushless motor, and the Mamba is the best to run with the brushed motors. I also have a 10 turn cobalt to switch with the 7 turn when I don't need quite as much power.