The mamba maxx seems to do this to act smoother. and it works.
the mamba-maxx doesn't start at 2 rpm, it has a limit of several rpm's per minute. (to produce the needed EMF for sensorless) after it reached the starting RPM range, it can go lower. it's a neat trick to prevent cogging IMO..
Yeah, it is a neat trick, but only if you are using 2-pole motors. Even then, that feature sounds like it would be most useful for smaller motors (like their bundled solutions) since they don't quite have the torque of a larger motor.
I suspect that if Castle releases a firmware update to use 4 pole motors, we'll find the ESC acts more like a normal ESC.