This my first year in racing and Iam quite the beginer,I bought myself a mimi 8 for winter season and also got a used cougar sv pro roller for summer.Iam looking for motor ESC and servo to put in the pro,my mate who has raced for along time said I should get a sensored brushless motor for the car....my question is as a beginer do I really need the sensored motor?? and whats the pros and cons of the two?Looking for good advice