the rpm of the motor will go up as speed increases, especially if its a direct drive motor, up until it hits a point where the kv vs the air drag equals out, similar to a gas engine wouldn't it? if the throttle is full bore, from start to full speed the current draw will be highest from dead still to lowest at full kv top rpm. if this is totally wrong please post up, i haven't been running electrics for that long, but i did go to school to be an electrician and that just seems abit more along the right lines?