Alot of guys at my track are runing castles sct 3300kv 4 pole setup and is just as fast as my mm 5700kv setup and there teps are running about 100 deg. while mine are at about 150 to 170deg. and you cant go wrong with the cost ether at $129 and its a 4 pole motor wich means more torque and a little bit more run time. We have about 20 to 25 of this things run reguiraly and at least half of them are runing the sct 3300kv combo.