To be honest, I hate pre-belts. In my style we have the saying "Your belt is there to hold your pants up" another saying is "You're either it, or not it" You're either a black belt or not one. We have no probationary or provisional belts in our style. ALTHOUGH because you can't advance to Senior ranks (green, brown) until you're 14 some people are say 13 and on the highest junior belt (purple 3 stripes) So we give them I suppose a "provisional" belt of green, but when they turn to 14 they get the full one. But we only do this for that reason. But remember, a belt is there to hold your pants up.