I heard from many people that it is good if judges don't remember you from style to style, or don't recognize you, after you change costumes. Becuase you don't want them to carry over their opinion (what if it is bad!) from one style to another. That includes changing costumes between standard and smooth. And today I heard from a dancer, who was a very successful 10-dancer (representative at world championships for her country in 10-dance) that it is good if costumes (latin and standard) match in color or somehow in style, so that judges can recognize you as the same couple in the two styles. What does everyone think? Match costumes? Don't match costumes?