i completely agree. i liked the xerun 4000 kv motor, i absolutely LOVE the 4700. fast, smooth and cool. i even got a lucky one and to swap between my 4000 and 4700 all i had to do was swap the solder posts connected with the cap screws. i've seen these posts as non removable, cone/dish connection and the slotted connection, i'm not sure if there if there's a method to their madness as far as what solder connectors they use, but it's a nice little bonus when you can swap out a motor without having to resolder anything.