Its judgement knowing the ability of your fighter, having a good Promoter to back you .Had one kid 16 am fights, was fighting for a world title after 18 pro fights' the others had 70 ams 90 ams 50 ams and 30 ams all boxed for world titles after twenty odd fights 4 winning. All different styles and temprament. Its all down to judgement and knowing what youre doing and having a good team around you.