[crazyjr]

I'm sure someone will correct me, if i'm wrong. Slot designs have sort of a iron core that the windings go around ansd slotless is a design where the windings are pressed into the can without support of the iron core. Slot designs are usually handwound (I think) and usually more expensive. To tell the difference, the slot will feel like a brushed motor( where the magnet seems to grab the end of the slot and kind of has a jerky motion, Slotless will have a very smooth feel like there are no magnets in it. I have both and i can tell you, If you can swing it, get the slotted and an esc that can handle it, you won't be dissappointed