This Tekin 4600 is the first sensored motor I have spent a considerable amout of time driving. I have always liked my Castle and Steve Neu motors. With that being said the only advantage I give a sensored motor is when I crash(which isn't very much), if I spin out and the car ends up rolling backwards, with a sensored motor I simply hit the throttle and the car will pull forward before it comes to a complete stop. With a non sensored motor the car has to come to a complete stop before the motor will change direction and drive forward. I find both motors just as smooth from a rolling start, which makes since, since the sensor only works at startup.
Bottom line is I really like all 3 motors I spoke of, but It is nice having the added insurance that comes with a sensored knowing I wont have to stand and watch my car roll backwards from time to time.